I made it because I was kinda bored  🫤

It's good but quick question

Is that big yellow thing supposed to be his aura or his hair after becoming super Saiyan 10?

Maybe dirt ? 😛
I think it's dirt.

Yeah i don't think that Gohan's hair would merge with dirt 😛

Is it in the background? well if it is then its his aura.

I tried to distinguish the hair color from the aura color  😛

Well you couldn't do so, you actually fused them and made him look like SSJ3 V2, but still quite good 😉

Nah, more like a dirt effect 😛
We can see differences between the hair and the background, and I don't mean the colour 😛