Sculpting highly detailed large scale characters requires more than just knowing how to add fine details. At this scale, anatomy is more important than at smaller scales, where anatomical errors are less likely to be noticed or covered up with textural details. My experience in toy sculpting also gave me experience with articulated action figures. Articulating joints is a skill of it’s own. For statues, the joints don’t have to move, but knowing the best way to cut the figure to hide keyed parts is a similar skill to articulating.