Nice job here, I really like this. I have two small things that you could consider.

First of all the masking on the back looks a bit sloppy and a bit too sharp. I don't know if you are trying to make the coffee come up a bit on the back, but it doesn't look right. The surface of the cup is very solid and sharp, so the elephant pressing up against it would match that clean line. For this purpose, the pen tool is really the only thing you should work with when you mask.

You can look at this tutorial - https://www.youtube.com/watch?v=dSdov7nVYdo

The other thing is that you have some areas of the body that has lost its texture. Especially on the legs. Try going over it with the clone stamp tool to give back some of that lost texture, this you will have to do by trial and error because it can be difficult.

Anyway, I like it and I wish you good luck!

Congrats....