Blimey, you have so much cool art in your gallery! On the DC fan fiction site I write for, we're always looking for brilliant art to act as covers for our stories, and I'd love to get your permission to use some of the stuff you've done for that! We'll of course credit and link back to your dA!
Sry for a late reply here. I haven't had any time to check da for a while.. Thanks for the interest in my art. If the images you'd like to use says "Daily Sketch" you have my permission to use them as long as you credit and link. If other images please ask specifically first.