What exactly is the issue? I'm seeing some weird lumps in the shoe (which has more to do with the base mesh, and is likely only noticeable in Texture Shaded.), but not entirely uncommon. I'm also seeing two somewhat different skin tones. What are the shoes? Are they shells (unlikely.)? Do you have any other shells on the model, if so? It's hard to say without knowing what the issue you're looking at is.