The idea is good

This shadow falls) could choose the same color darker, but then on some screens the color would be difficult to see. Ostriches are cool)

The land could be extended by 1 cell left to the ostrich is not blended with the frame.

Thank you to everyone for the advice
Different colors to one leg different from the other, the pattern is unusual and when made the legs the same color was not very clear that this two legs still cell will take into account, honestly had not thought of. The most difficult thing to draw something other than animals and flowers, is not enough yaks to our super artists, I'm not an artist , I'm just learning