It is ABSOLUTELY FORBIDDEN to use my name or signature, with or without a copyright sign on your completed work after alterations. I realize some groups tell you it's OK to do this and even require it; but it's NOT OK . . . it's as misleading and insulting as forging my name to anything else. The completed image is not mine, only the tube you used in your work. You should NEVER sign soemone else's name to your work.