Normally, I'd be more consistent with the shading and do the clothing too, but the shirt is vinyl and the jacket is sparkly, so there will end up being so much Photoshop work, that pencil lines would end up not showing up much anyway.
The same could be said for the face, really, but ... at least with The Cat, I always think the proportions look wrong until after I've added some shading, so I can't really get around it.