"Any tips on how to render skin on drawing?" -> mh..I’m not the best teacher, since what I will say has been said countless times already..
But still, looking at references, especially of muscles, does help a lot https://t.co/oUXSOnHSYk
I was mildly disappointed when I was reading this oneeshota doujin where the shota was actually really cute, but then he whipped out a monster the next page and I sighed