i would have whittled it down to the bone.
no stroke on the text, made the blues different tints of 1 blue, ditto with the browns, too maybe.
the pattern on the hat is inconsistent with the simplicity of the bird heads.
the rounded corner background box doesn't seem very exciting, either in shape or color. but i'm glad you broke out beyond the edges of it.
"blue cranes" seems randomly placed. it might have worked better over the nest instead of crowding your main figure.
birds don't wear hats. it's totally unrealistic.