What's the soft tool? The blur tool? o_O
Try blending in the shadows/highlights into the picture. The smoother transition will probably make the picture look better. If you're going for the cel-shaded style, though, try to make the shaded/highlighted parts smooth shapes. For instance, on the viewer's left sleeve, you could make that a smooth block instead of a, um, squiggly block. ^-^
Good luck.