Bailey stays VERY informed on the miniature world. I've tried in the past to throw curve balls his way just to see if he has heard of an obscure sculpt, and not only does he always know of the sculpt, he likely owns it.
Yes, that old civil war painting is pretty poor, considering where you are now. What I noticed more than anything, though, was overall how your layering has improved. What I mean is that many painters dilute just right, and even control then paint on the mini just right. But where they fail is adding too many layers. I read somewhere, long ago and I can't find the write up, about how acrylics react a certain way after multiple layers are added. They tend to go glossy. And your sculpt is a great example of this. The Civil War guy's jacket has too many layers. They may have been diluted properly, but when we put so many layers down it destroys the smoothness AND the matte finish. This is something I am just now learning, and still failing at from time to time. It is especially noticeable on skin, and I've actually found that you can use it to your advantage. For instance, with watercolors oftentimes painters will highlight simply by slowly making the layers more translucent, rather than adding white. We can do the same with acrylics. So if you're painting a big fat gut, add fewer layers at the top of his gut. You have just highlighted without changing any colors.
I digress. Simply an observation made about your improvement, and how others might mimic your success.