Redd, my wife has been a professional artist and art teacher since long before we were married. You have a wonderful talent, and I like your work. Develop it, learn, and don't get discouraged. Recognition for an artist is hard to come by, with loads of competition out there.
BUT, keep your day job. If it weren't for my work, my wife would be on welfare. She wins awards, gets ribbons in shows, and is admired by her peers, but art doesn't sell for anything like the cost of production, if you factor in the artist's labor. My wife's work sells in the 2000-5000 dollar area, but each painting takes a couple of months to complete. Do the math. Starvation wages.
Leslie's suggestions, and many others, are all good. We haven't had a lot of luck on the internet, but that's not necessarily going to be your experience. I think aviation art may be more popular (at least within a small community of clients) than is traditional still life, figures, and landscapes. The print market sure looks good, and I would look in WINGS, AVIATION HISTORY or AIRPOWER at the ads by the big names. I am surprised how much they ask for (soemtimes) obviously flawed compositions.