Dicking around until it looks right (also known as "winging it") happens usually when you don't understand the way something works, or how to get a certain result (like say me and most PS functions, don't really know why or how most of them work as they do but trough trial and error I can usually get what I need). The moment you don't need to dick around to make something usually means you know enough about it to accurately render it (again, happened to me with metals and their highlights, watched videos, images, tried it myself but one day it just worked and ever since I can do somewhat properly metals). That's usually the moment you should start working on other stuff you need to dick around with until they look right.
At a certain point in time you should theoretically know how everything works and how to get there, that unfortunately means you're about halfway done to becoming a master engraver
This is about exactly how I figured out most things I know about art at the moment.
Step 1: Brute force it, get irritated, toss out results.
Step 2: read some stuff on it, try again, get irritated toss out results.
Step 3: sleep, wake up, do normal stuff, get bored, try again, nail it (more or less)perfectly.
AS FOR YOUR LIZARDGRL, you're obviously aware that her shoulders appear rather raised (i wonder why, though, i'd get a horrible headache from sitting like that), but another thing is that her legs and feet appear rather large compared to the rest of the body. The feet could just be perspective (she's facing the camera, after all), but them thunder thighs, bro! I know, non-human anatomy, and legs ARE a lot thicker than arms, but i think these might be a little bit too thick.
Other than that, though, i'm seeing a tremendous improvement in your art. Kudos! c:
One of the most irritating thing I've had to deal with in art is different communities having radically different opinions on what is "correct".
Most of the time it seems like conceited ignorance due to embedded conceptions of how something with no groundings in reality is supposed to look in their head (An extreme problem in furry-centric communities), but other times, like in the case of this thread or the Data Realms forums, yall seem generally able to accept that something is in fact not a real creature and thusly does not have a "perfect" way to draw it.
You in particular Shook, along with Adriaan over on the Data Realms forums seem to get this better than most people, thanks for that.
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That being said, The legs issues was a minor mistake born of an attempt at perspective, I'll take that under advisement.