You're both very kind!
I definitely agree that the quicker sketches are a bit subpar, mostly I feel that's more of my lack of experience when it comes to structured practice (I'm self-taught, but I rarely practice like I should XD ) and I am strongly considering doing a lot more quick gestures, like 90 minutes of 1-minute poses, to get over that hump and hopefully enhance the gestures of more lengthy sketches like the renders.
Thank you for the feedback! It's greatly appreciated C: