Here are my few $.02 over these screenshots, for what they're worth
Like I said most of them deal with exterior issues. I have little to say about the interior, it's almost perfect.
The tower on the left has eyes painted on it that may be here to recall the architecturial style of aztec/maya constructions. If this is the case, there's a double impossibility. First because all the precolumbian architecture is made of cementless walls of large blocks of stone, which weight a lot. It is impossible to have them in such a tower where the 4 pillars would be utterly insufficient to support the weight. Second because this type of tower simply does not exist in precolumbian architecture. The exact same thing applies for middle-east architecture in case I understood wrong.
That very dodgy ground indicates a strong influence of winds to move sands around in dunes. In this case it is impossible for a palm to stand in such an environment. Palms are found in oasises only, and/or on solid ground. Never on sand.
That type of canopy always supports a candle or a brasero. It has no other use in ancient architecture. Eventually for a shelf, or supporting a statue, but in this case it would be much closer to the ground.
That big structure in the background looks 2D somehow...
And these sort of roofs are an absolute impossibility as well. Bent roofs have only one purpose: it is to allow the rain to evacuate quickly, and the most bent ones are so that the weight of the snow deploys on the whole construction. You only find these types of roofs in mountain environments where the winters are cold and icy. Even in temperate environments (west europe for example) the roofs are not that bent. But in sunny and warm (tropical and equatorial) environments, all roofs are FLAT. Always. They also often support a platform where people can stand on evenings when the sun is not high in the sky. They don't need to be bent because the precipitations (rain and snow) are almost inexistent and would they fall they wouldn't be a problem for the stability of the building. In cold mountains on the other hand, the weight of the snow on top of the roofs can average the ton, it is there MANDATORY for the roofs to be bent to ease the evacuation and dispatch the weight better over the building structures. And where there is sand there can't be snow. What you have here is an impossibility.
Who transported this pile of grass here ? The farmer who did this must be very stupid: it's on an exterior platform very exposed to wind ; he can be sure that by tomorrow nothing will remain of his nice pile
In farms these sort of piles are stocked either against a wall, or better in a corner, and almost always indoors. When it is stocked outdoors, it is for drying the grass (hence not suitable for feeding animals) in the middle of a yard surrounded by walls so that the wind has little effect on the pile. But as is, it's unrealistic.
An advice to mappers: never put trees that close to walls. In real life you hardly ever find trees that are close to buildings. The reason is simple: the roots of the tree always explode the walls with time while growing. Come back 10 years later and there is a large crack in your wall. Come back 20 years later and the wall is down.
Same remark about the roof as before: if this map takes place in a warm (tropical or equatorial) environment, roofs CANNOT be bent but flat. Simple. On the other hand, if this map takes place in a temperate environment, then why is the top of the roof flat while the most of it is bent ? How can the rain flow down at the top ?
I circled in second the texture that is on top of the entrance. What sort of texture is this ? It looks like ceramic. Why put ceramic here ?
Now there's also something about the windows: they are WAY too close to each other. Plus there seems to be windows on 4 sides of the building, which makes us 8 windows for a... 20mē room !!! I mean, wtf ? There's nothing like this in real life
There are structural oddities here. First, the pillars are not wide enough. They oughta be of square section at least (its structure is way too weak elseway). Then, the wooden beams just cannot be standing on top of the pillars but have to be carved inside. It's way too weak too. Any shock, or even the erodion combined with the wind and precipitations, can make the beam fall in a few years time. There is also an oddity where the beam just touches a convex corner at 90°. It just looks like as if the beam was "pasted" there with some miraculous glu. Nope: in all architecture walls are hollowed to support wood structures.
What's the purpose of these structures in triangle on the left ? The only thing I could see would be if it was for a temple, and where they would have a spiritual meaning. But they are not evenly placed, not symetrical to anything, and as far as I can see the wall that supports them has no decoration, no painting, just a plain dull wall. If these structures are part of a temple or something of spiritual interest, insist on the decoration nearby (sculptures, statues, etc.)
Also, there is a lack of space at the top of the tower between the window and the roof. Yet another note about these roofs: if you REALLY want to make bent roofs, don't forget their purpose: it is to evacuate rain. Hence these roofs must ALWAYS overlap the wall a bit (so that the rain cannot flow against the wall and make it dirty).
The purpose of such towers in "Y" is to provide a large field of view to the observator inside thanks to a wide glass bay. All these towers are completely circled with glass windows, on all their width. I don't see the point of the "Y" structure with the windows you have.
A texture problem here ? My apologies if not
IMO the orange background color around the neon tubes doesn't fit here...
that's all I can think of so far.
Good work on all the rest, especially the interior.