Are you thinning your Vallejo paints? They really shouldn't be used straight form the bottle. There are a few spots where the paint look too thick. Go to the Vallejo website and click on MOdel color then scroll down for the tutorial on their product.
The scuplting is a bit soft compared to the metal and resin figures I'm used to so getting good highlights and shadows is going to be more difficult for you. As mentioned, retouch the edge of the eyes, there;s a bit of the iris running onto the eyelids.
Make sure you have a really good brush to work on details.
Also, you've chosen a really challenging camo pattern. When I have a pattern that looks like it will be difficult, such as a Scottish tartan, I practice it on sheet stock until I match the original pretty closely. Download a [attern that you're planning to do then practice the shapes of the pattern and colors used.
Anyway, keep up the good work.