I am very hesitant to do this because you are asking me not only to do a lot of rendering, but to take a cool colored sketch and combine it with a warm colored realism photograph.
I'm also not sure of exactly what you want.
Do you want the cool colored body to replace everything except the wings of the girl?
Or do you want the wings on the cool colored body and the man's face replaced with that of the girl's?
Well i knew it will be hard to understand and hard for you to make it^^ Yes, i want that entire cool-colored body of the angel put in the middle of the drawn "hair" of that girl, so it looks like fire wings on him... Of course, i want the girl to dissapear and just have the cool-colored angel with the warm-colored "wings"... But if this is too much work, just use the cool-colored picture for my signature, resize/chop it and write the text under or on top of the angel
Feel free to add or draw inside whatever you like.
Edit: Unfortunately i don't know how to use Photoshop, or i try to do it myself
But i've seen your example signatures and i thrust in your talent^^ I know u can make a master piece! Perhaps my english is not good enough -.- And yes... I want the "no-go": warm+cold colors... It creates a special atmosphere