Well, isn't this a good thing?
Sometimes when I play with humans they can't locate the bomb, however, they try by using their mini-gps radar.
Also those pictures are pretty big in size.
May I recomend using xat.com Jpeg optimizer?
Anyway, isn't it a rare case where a bomb is mostly hidden in a wall?
or even in a slope where you had it?
I normally see a bot with the bomb running to a bombsite rather than camping in a corner, however, a straight wall is better to imagine where a dead bot might have had the bomb thrown.
Also, scorp mentioned the need of a waypoint near by to help the bot locate the bomb, well I'm sure it is needed, but I'm not quite sure you need a waypoint near by to have the bot(s) know where it is.
Also, I think when a bomb was dropped, the CTs were to camp near it. I thought I remember seeing that, might have been a YaPB thing.