Need help to adjust picture

Hi

The wife and I wanted to get a larger print of one of the photos from this summer. One thing I'm struggling with is that the face is pretty dark and I can't seem to figure out how to get it much better.

I have attached the original (well the original is in RAW but 22mb so it's the 100% quality jpg)

The original:

This is my attempt:

Any help would be greatly appreciated.