Tako is correct OleBoy, for a radius the pen tool is your best friend, because it produces vector graphics and not rastor graphics as does mapping them. You will get a much sharper image with the Pen Tool, learn to use it, I did after reading and taking note of its usage. You can adjust you radius with no loss of detail too. That Wilga-Bee is looking good too, painting is addicting, ain't it?
I do logo designs and all printers want vestor graphics, because you can enlarge or reduce them without loss of detail. For most of my work I use Illustrator, but for repaints I use Photoshop and the Pen Tool. It is the only tool in Photoshop or Paint Shop Pro that will render vector graphics.
Nice simple design tutorial Tako, use that site and practice OleBoy; trust me, the Pen Tool is a great item for repaints.
Caz