Looking good, but practice getting your FLOW down.
There's a couple of elbows and flat spots that are distracting.
Going clockwise, group #4, has the secondary scroll coming off of the main scroll at a 90○ angle. There again , FLOW off your primary.
The way that I and several other disciples of Frank Hendricks were taught is to fill numerous practice plates front and back with a single scroll pattern. I look back at these plates from time to time and grimace!
One instant of inattention and you have an elbow, flat spot or bulge.
Stopping your rotation of your vise to reposition your grip can also be a contributing factor. I have a turn table mounted on a lathe live center tailstock which floats as I walk my fingers, giving me an uninterrupted flow.
Keep at it, you're doing good. Develope your muscle memory, drawing skills and PRACTICE, PRACTICE! Fill up a BUNCH of plates, keeping in mind Shawn's byline, " Perfect Practice, Makes Perfect"? Or something like that!
I usually tell people the same things. Simple scrolls with clean backbones and good lines is one of the best ways to practice. If you look at your scrolls, you may try bringing the knob ends around a bit further to avoid what is commonly called the fishhook. Some of these are almost right while others have that fishhook look.
I found early on that I burdened myself with overcomplicated designs and lost sight of the fine details that made a good engraving. I was looking at the design as a whole and that makes it easy to overlook the small bits.
Keep it up. You are moving along nicely.