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Thats because it takes time for good fanart to come out. Its easy to make a character with such a flexible silhouette look cool with some simple dynamic posingand extremely minor reproportioning, but obviously its going to give a shiity first impression if you always see it standing straight up without any posing or diegetic stance to support its weight.
Those feet just arent meant for sitting on heels at all times and its hips are too small to pull off a contrapposto look with its huge ass hands. The in game idle pose is like its worst possible look.