Hi EvoG
here my comments only to the important things, i see:
1. Have next time the shadows softed to left and right, they looks to sharp cuttet by the edges of the image.
2. the shadow to the right is cut, this nervouses the image, like its flowing out of the scene at that point.
3. why do you cut the stand of the ninja-figure?
4. Move the Hands to the right and have more room to the left upper side.
5+6. its to centrical arranged, play a bit with free room arround your compositet scenery.
greetings peter