yooooo this ones a big one for me I was commissioned by Aaron Dembsky Bowden to do a pic of the first claw, check out his books he's a badass 40k writer, here's his blog and you can also get a gander of the full sized image here [link]
but other than that I'm still trying to get my foot in the door, it doesn't help that they have caliber like Karl Kopinski and Adrian Smith (there are others that I could point you to if you're interested) that consistently blow my pics out of the water, I don't mind though those guys are what I reach to .
"I wanted to be a hero". Well done, the fact that I can tell them all apart at a glance is awesome, you nailed the major details, Xarl's chainsword, Uzas's chainaxe and skin cloak, and obviously Aurum in Talos's grip, among other small but important details. I recently finished the omnibus and the characters you illustrated so well are among my favorite(if most deplorable) characters in 40k and you most assuredly did them justice. Well done.