You should check out some of the awesome stuff that can be done with ink washes, especially when sketching out things like concept art. Personally, I like ink washes because it's faster than setting up my watercolors. I'm more of a traditionalist, really. There's something about not being able to fully control how liquid will spread on a page or a canvas that gives it all a weird element of ADVENTURE. I find that it also pushes you to be a better artist because there's no "delete" button. If something doesn't go your way, you have to learn to deal with it, and that allows you to discover new methods and grow.
You should check out this artist:
[link]Here in the States, there are A LOT of comic cons, in cities all over throughout the year. But California seems to host a big number of them. We just had Comikaze last month, Long Beach Comic Con is in two weeks, Gallifrey One (a Doctor Who convention) is in February, WonderCon is in early spring (around March), Anime Expo is in June, San Diego Comic Con (the HUGE main convention for the entire industry) is in July. That's just here in California. Dragon Con is the other HUGE convention in the States, and that's always the last weekend of August in Atlanta. There's a lot of other smaller cons throughout the year in different cities though.
I have personally never had a portfolio review looked at professionally. Well, actually, I take that back. It HAD been looked at because I did an independent bid for a graphic design project through one of my friend's company. The company looked over my portfolio to see if they wanted to do business with me. They were happy with my work and my ideas, but the end client ended up going in a different direction (and stepping away from the deal altogether). But that's the only time I've been brave enough for it.