Sorry to take so long to respond to your request.. I initially read your Post a few days ago. And thought about how to respond to you. And came to the conclusion that there are probably umpteen million ways to talk about approaching drawing Thighs in perspective.. But without seeing the initial photo reference you're drawing from,-- I'm guessing all of my possible responses to your query will come up short. And be unsatisfying to you..
For the most part, I think your analysis of your drawing is pretty bang-on. The Head and Neck look serviceable. But it looks like the Hands were too much for you? A common problem with young artists. But a problem that won't be solved with a scribble of frustration. You've gotta work on the tough stuff, if you really mean to improve your drawings!
One simple trick to drawing Limbs in perspective, is to "layer" the bits correctly. While I think you could've still added a bit more of a Calf muscle to the one leg that's showing.. I think you're on the right track there.. More of that! Foreground parts always being larger than the Background parts that're receding..
If you'd like a more thorough Redraw from me, I'd be happy to do it. Simply post the photo ref for your Drawing, and I'll have a better idea of how to give you meaningful advice.. Good Luck!!