Very nice rendering going on and interesting concept overall, but as dpaint mentioned, the lighting is pretty helter- skelter (eg., the mysterious rim lighting on ram/bird). Also, was it your intention for the figures to blend right into the background? I can obviously see the albino color scheme continuing in the background, but there is just no feeling of depth/space since the values and contrast is all similar throughout.
Last thing, I think the perspective on the background panels, which are implying that the horizon line is at bird/horse's eye level is also throwing the whole image off (I guess that could have been intentional, for that whacky, circus feeling). Honestly, I'm liking the first sketch drawing better than the last version.