Darn kids these days with their music and their Tumblrs. How people can think that's the place to go to display and view art... It doesn't really make sense to me either. The narrow vertical page layout, the lack of comments and discussion, the limited image size, various other things, it just doesn't seem good for serious art enjoyment. Probably fine for people who like to post lots of relatively quick things or random pictures of their cat, but that's not what I'm after. Quite frankly I wonder how many artists are on Tumblr because they truly prefer the site itself, or just went there because that's where it seems everyone else is. I suspect it hit that level of popularity, or at least perceived popularity, where the popularity itself is a selling point. But whatever, it is what it is, and if it sucked the trolls away too, then at worst that's a glass half empty/half full sort of deal. Though dA having a big troll problem is kinda news to me, guess I stayed too quiet and unpopular to draw their attention.
Anyway, since you're asking, I'm a tutorial fan myself. In particular, I'm most interested in digital painting or coloring techniques employed by those who color like you do, which is to say... Painterly, I guess? Closer to a real media sort of feel than the old unnaturally crisp digital-flat look. That's what I like, and want to do better. I was reasonably happy with my old actual real media paintings, (I especially liked working with gouache,) but I can't pull it off to my full satisfaction digitally thus far. So really, all the information you care to give on digital painting technique would be good.
Alternately, you always draw the volumes on your animal heads so well defined and substantive, and what's more, always do it well without sticking to the "easy" angles, so a little step-by-step on just one specific, I dunno, wolf or dragon head would be nice- the kind of basic shapes you break them down into and that sort of thing. Seems to me like there's different ways of fitting muzzles into craniums, or working in the brow ridges, for example, but however you do it works great. Obviously practice and skill is a huge factor there, but seeing the technique you've perfected would help point us in the right direction.