Sketching Compositions for RPGs

Ever since I picked up my first Magic: The Gathering cards back in high-school, I was into sci-fi and fantasy role playing games. Not for the chance to be in a different world, pretending to be a monster or a goblin (I've never touched Dungeons & Dragons), but for the Illustrations. I haven't played the game for over 10 years. I don't think I even remember how to play it anymore. But every time a new set comes out I scour the interwebs for the art. I have several friends that illustrate for Wizards of the Coast (the company that publishes Magic: The Gathering and Dungeons & Dragons), some even make a decent living from it.

It's always been my goal to work for WotC but my portfolio does not reflect this. So I've been playing around with compositions and sketching out ideas that I'd like to eventually turn into a portfolio for RPGs. Here are some doodles I did last week on my lunch break at work:








What do you think? Are there any that jump out at you? Any I should develop further or forget about?