Love your self portrait.
On your first self portrait mug rug swap I was a little scared to try... but followed the posts. And found that 'silly me' shouldn't have been scared off so easily.
Will you be posting a link to your challenge on this thread?
Also, I have been following Jane Knapp's posts on using Derwent Inktense Pencils. Those might be fun to work with on this challenge also.
http://www.quiltingboard.com/t-131922-1.htm