You're welcome. And thank you for the kind words. Funny thing, I've been here almost since Deviantart started and have about a fraction of what "popular" artists get in terms of attention (and likely even less commissions haha).
Maybe I should just join the bandwagon and just do gratuitous nudity, porn, or furries, lol. Anyway, thanks again for the appreciation!
My advice is just do what makes your heart and soul sing. Learn the basics and fundamentals (especially anatomy). It's only by learning these that you can push the limits while still making it look good. And don't be discouraged by critiques (or criticism). And don't stop chugging forward. You only fail if you stop by your own accord.
I have a lot of favorites, but if it were a top 5, it would be Superman, Batman, Iron Man, Thor, and Spider-man (Peter).