I'm going to take a moment to really urge anyone interested in developing their art abilities to get invested in Conceptart.org. It's been around for years and is a fantastic resource for anyone with a desire to become a commercially successful artist. I'd say along with the growing appreciation and legitimation of street art and the graphic novel/comic as important and culturally relevant forms of artistic expression worthy of study, concept art (whether digitally or traditionally done) is another powerful force in the movement to get art back in front of our faces.
It also might be the last place outside of art school classrooms where you see people carrying on the traditions of the masters as opposed to moving towards more stylistic representation. Yes, these people all paint dragons for video game production for money, but you'll find that they're all extremely well versed in not only art theory but art history. How to make a 2D apple or naked woman painted with a limited amount of color choices look like it's ready to jump off of the page is a problem that we've literally spent centuries and centuries developing and refining a solution to, and in a lot of ways it's invaluable to have at least one community of people still around to help workshop that process for a beginner.
It's also very inspiring to see some of the work these guys do, from comics to fine art to concept art for film and video games to storyboards, etc. The talent on display there is mind-bending. And it's heartening to know that you can still get paid to do this stuff.
They've recently released a subscription tutorial workshop program, which I hear is really good, and not very expensive, but the first three first level assignments are free and accessible to everyone, and the instructor is actually pretty active offering feedback and criticism on that level. So I've been doing that for a couple weeks, and have definitely seen improvement.
Even if you've no intention of ever making art, take a second to go appreciate these guys and this awesome community. If you're interested in the workshops, they're about halfway down the forum page here.