I just adjusted the size of Firefox and Paint so I could see both at the same time, so it was pretty easy. The hard part is the coloring. You have to really play around with custom colors, and get the right shades of grey and such.
Also, Psyduck.
That foot looks a bit weird to me, but the Sugimori one had shading there.
I personally think I did amazing on that bill. Paint already had the exact shades of tan I needed.