That's really kind of you, very high praise!
One thing about working on tilesets for your own game, you find out pretty quick whether it's right for you or not. That was actually how I got started, I was working on a game project that needed art deco tiles of all things, and there are VERY few of those out there. I ended up making a lot of things from scratch. Like you, I started from a more traditional art background and I didn't really think I could make whole tilesets, but the whole process taught me a bunch and gave me enough confidence to try.
Thinking back on it, that game would look an awful lot different if I made it now!