He looks somewhat similar to Adalon, though a bit darker, the stripes aren't so well defined and his legs look a lot lighter. I think it looks close to an Indonesian in terms of pattern and body shape, though the lighter legs would lean towards IJ? He's a beautiful skink none the less, congratulations on joining the skink owners club!
With Adalon, I know for sure his mother was a Meruake, but the father could have been an IJ since he seems to carry some similar traits. Ultimately though it doesn't truly matter unless you plan to breed; they make fine pets regardless of what species they are.
Here are a couple pictures of Adalon for comparison if you are interested:
edit: ok after looking at these pictures side by side I realize Adalon looks nothing like your skink, he's got too fat of a head.
