I will post it (actually x-post as it's already up in the mixed media forum), but you won't get much help from me with the smooth shading you're after, haha. I have the Walnut Hollow Versa Tool. It's a step up from the single-temperature tool I had before.
If I can master this one, I might invest in another one down the road.
I think your shading is quite beautiful, actually. I'd been watching videos and reading about the basics of Pyro, and was kind of hooked on the idea that texture and values had to be created through specific techniques (cross hatching, pointilism, etc). Your work just helped erase that idea from my mind, so thank you!