allot of colors could be good actually sometimes but at one small part its usualy not anyways circle shading dont go like this but here is an example of circle shading not made by me
for the other part what i mean is to try to show the top of objects like some parts in the cloths another way to explain this is like the hat and stand you made you used bright to shade it so it looks like the top of the object the same thing could be in allot of other parts just showing the top corners etc in a good way that match the material and the shape of it