What have the N'Ozzies ever done to him?
Anyway, J+B, you could try shading. The clothes look unreal. Like clothes being held up under the figures chin. Lines that are closest to the viewer should be darker (and so more clear) as they get nearer and lighter/finer as the line recedes. Shading and Light makes things look better, but it can be tricky, just give it a try.
None of these are mine. I haven't sketched since I was 20.
Get your eyes off the nude and look at the shading and light, especially around the face and cheeks and more obviously on the hat.
Folds and creases on the clothes are obvious and the lighting works very well here.
You get the idea. Why Piltogg's?.. wait, forget it, dumb question.