I've had much to learn, and, with the work load in teaching, progress in my work has been frustratingly slow. I take a great deal of comfort in Hokusai: "...nothing I did before the age of seventy was worthy of attention..."
My one strength as a young artist was reasonably accurate observation. Composition, color, brushwork/mark-making were steep learning curves. I've spent a lot of time working from direct observation. The way light moves around form is something I find fundamentally mysterious. And, it has taught me a lot about form and color.
I use photo references for landscapes. Because a photo is already abstract, it lends itself to manipulation and lately I've been having fun with that.
The themes that have proven consistent are environmental issues, levels and structures of consciousness, the feminine principle. I am also interested in edges.
I find that I am most engaged when I'm out of my comfort zone - basically don't know what I'm doing (or at least, going to do next).