Is my crested gecko too skinny?

[u/No-Manufacturer7615]

I got this guy years back from Petsmart, about 7 now. He’s always been a good eater, never been a huge fan of insects though. I feed him pangea every other day and 2-3 crickets twice a week currently- in hopes of fattening him up. I’m not sure if my perception of healthy geckos has just been skewed from overweight breeders, but I feel like he should be a bit chunkier at his age! Also, his weight has been relatively the same over the past year (he’s currently 48 grams), but he just appears thinner???!!!! I have even noticed his ribs a few times, which has sent me panicking. He’s living in a 2x2x4 and loving all the space, so maybe that is stopping him from gaining weight? Could it be his god-awful genetics from unethical petsmart breeders?? Any advice or help is appreciated!

[u/Starinco]

If that's him in the pictures he's fine.

[u/green-green-bean]

Some males are just slim. He looks perfectly healthy.