A Lot of Potential
It's good, and it looks clever, though you made them both look like adults, with their body sizes and proportions. I thought that was Mirai and Goku, and then realized it was supposed to be young (chibi) Trunks and Goten, and I was like WTF, oh maybe they're adults here in some parallel universe or something??
But anyway, I like the super saiyan hair effect. Good work with that. Just keep in mind chibi characters are suppoed to be small and their heads are supposed to be like, 1/4 the size of their body.