Fantasy sketch crit please :P

[Wardy]

[attachment=17968]
heey, right these are my 4 thumbs, im a fan of 1 and 2 myself.
Im a big fan of having a waterfall and a kind of warm pinks and cool blues cave, was gonna have a load of broken off arches surrounding the cave and drawing focus to the waterfall and dude through their direction but i think they look too hostile for a placid environment?
Anyways, let me know what you think and which are you faves :D