Picture/Description: How about... a deep-sea water? Like, if you are out in the ocean, and you look down, and you see...
this. This deep blue feeling with a greenish shade. Very little waves, so little that you can see deep down, but it's so deep that you can't see anything except the whole
deepiness. It looks light on the surface, but you can feel that deep down is something much more deep and dark. (Excuse the repeated use of the word deep. I just tried to get the expression across)
Seamless or not?: Whatever. Best seamless, but the request itself is quite hard, so...
Public or Private: Public.
Please don't bother too much with this this request. I just thought, if you take requests, then a challenge would be interesting. So have a little challenge of expression there. If you can express the feeling of deepiness(is that a word?)... you will deserve admirance.You don't have to, if you don't want to. I just thought it would be a nice challenge. Now I'm starting to repeat myself. Maybe, of course, it isn't a challenge for you, but it surely is for me.
So, have fun and please tell me whether you'll do it or not.