I really love your work. Dare I say, it is comparable to the old masters' stuff.
I've never done oil before myself, assuming that is what you use, because it looks so intimidating and because I'm currently out of work and the price tag on the material is out of my range and so I stuck doing digital on a 7 years old Samsung Galaxy Tab that's prone to freezing.
I do play with charcoal a lot and look to get that painterly feel to it (failing all the time) but I'd really love to start messing with oil as far as traditional medium is concerned.
Cheers @deadsparrow!
Here's the good news. Keep practising with charcoal. Drawing is the foundation of painting. Drawing if done right, will teach you to see and understand values which are the key to the illusion of realism.
Further good news. To paint like the Old Masters you only need a few colours. In fact the fewer the better. If you want to go to the extreme, there's the Zorn palette, which only uses four!
So you can certainly set yourself up with the materials you need to paint in oils. You don't need to purchase everything at once. When I began, I only had a few things and over the years have progressively added to it.
If you're interested in creating in a manner like I do, I offer online tuition.
https://leoplaw.com/teaching/online-mentoring-tuition/