Finish (Fix) the graphic design i ordered for my room

Hello, i ordered a graphic design on fiverr to print it large and decorate my room with it. The source was a picture of the movie Back to the Future and it should be done in a specific style i found only (see the attachment). The result i got from the designer was great for the left person and the body of the right person, but the face of Marty (right person) was not as i expected it. It dont look like the source and in addition the facial expressions were wrong. So i ask for many revisions, but all of them looked wrong and not as the real face of Marty (right person). I hired another person on fiverr just for the head (i got the .psd file), but he wasnt able to get the face right too. So if you think you can get this done and complete the picture with a face that looks similar like the source picture we can work together. I attached some of the other versions of the head which i dont like so that you have a clue what have been already tried.