great, nice colors. some critic: In the tree light is coming from the upper right but in the apple is coming from left,isnt it? and i think needs more shadowing to look spherical.
I edited the picture and tried to fix. Will we now can compete?
This also doesn't fit the challenge grid, there's dithering in the bottom left and top right of the void.
Nice shiny colors and composition, but objects need uniformity of lights and shadows.