to simple and washy...
the idea is fine, but everything seems very washy, its very hard to see whats going on... ok theres a rabbit... might want to spend a bit looking at pictures of rabbits to get the shape a bit more correct... as for the background.. what am i looking at?... moutains next to a lake covered in mist?, floating rocks in the clouds?... or even tree's?... you need to define things better and add more detailed lines to show this...