35 colours is a bit much, you could pull off a very similar image with only 10 colours.
Proportions look good, but the legs seem a tad short, and the body a tad long.
a sense of depth is not achieved, actual lighting and shading does not work like that, especially on the cylindrical legs and spheres.
but that's just my very critical critique, you do show promise I encourage you do keep pixeling because it's quite fun :3