(Pic at the end)
He's a cinnamon sky for sure, and I'm pretty sure he's opaline due to the tiny bars and the color in the wings, but the part I'm not sure about is which yellowface he is. I got him when he was 4 months old and he hasn't moulted yet (he's about 5 mo. now), so I know it might be hard to tell for sure.
The yellow is a pale yellow, not golden. The yellow appears in his wings, tail, and blends into the sky on his lower back, though it's never really shown up in pictures ever. I'm thinking he's a yellowface (I) single or a yellowface (II) single. The middle image of him came out more yellow cuz of the lighting in the bathroom. I color corrected most of it but couldnt get the wings back to how they are in the other pics. Other than that it's pretty accurate. I need to get some more pics in broad daylight with my dad's professional camera, but idk when that'll ever happen.