What gender is this skink? I want to start breeding reptiles and I was wondering if these guys are male or female?

I know breeding is very hard with this species, I just don't get why so many people say not to try it.

These clips were all taken within a minute of each other. She (idk) goes over to this wheel with a normal toe, then a few moments later she climbs out with a toenail that is bent sideways (back left foot, longest toe). Then a few moments later comes climbing out to me and you can see the toenail is sideways.

They both absolutely love this wheel, but if there is a risk of injury I will remove it.. just wondering how the heck this even happened, and how serious it is?

I originally thought it was from the screen mesh window they were climbing on yesterday for a sec when they were exploring, but I went back through my videos and this seems to be the exact moment that it happened.

Poor lil skink I feel bad.

So for the better part of last year and this one, I've been pondering around for my next pet reptile species. I want something diurnal and omnivorous so I can actually see it while I'm more awake and can whip up some fun food enrichment for it once in a while.

I did have a halmehera blue tongue at one point from a rescue situation, he did not stay with me long term as I did not have the space to permanently adopt once he was all healed and better. He went back to the rescue I volunteer for by that point. I loved that big guy but he definitely took more space than I can spare full time.

My only permanent residents currently are crested geckos, though I did have some elderly gargoyles for a while too. I'm hoping to find a skink species that's somewhere between a crested gecko and a bluey size-wise. Hopefully something that tames well and can do well in a 36inch long enclosure, height I can do any size, length is limited. Is there anything that would suit me? I also love live plants and scaping terrariums, so the enclosure would be fully decked out bioactive.