Critique

This looks very cool and consistent throughout. 
The textures in the background are nice.
The croppings and placements of the model is good.
The horizontal and vertical spacing is good again.
I think you should work on balance some more. For example, 
you have a big face/eye view andthen a big flower right next to each
other in the center. it's a big focus point and quite "heavy" in the center.
try to break that up a bit and balance the piece some more. 
A good trick I do to check the balance is i circle some major spots.
Thank you for the entry<3