@Caitlin I don't know school buses in the US, so I may be wrong here, but I don't think they have completely circular roofs. The one you have at the moment is more barrel shaped. Wouldn't there be at least some flattening on the top, with just the sides a bit curved? @FelipePedro If that character is for Ace, then I think you need to work more on the shading. If it's for something like RM2k3, then I don't know enough about the art style for that to comment.