2 things.
1.I suggest that you don't make the bandages completely straight like you have, I suggest you make all of them diagonal, I will show you what I mean when I get home in around 7 hours.
2.If the fingers and thumb were wrapped up the wouldn't be black lines, the would either not be visible or they would be the parts out of the bandage.
You got the mapping skills, just not the texturing, practice makes perfect.
6/10 now.