VERY similar to the original, actually.
I like flipping through the reviews and seeing how many people are squicked out by this. I hope they realize that the Hansel & Gretel story they tell their children IS creepily similar to this...except the witch lost in the end. Mind you, if the witch DID actually catch onto Hansel's scheme, I wouldn't doubt that that WOULD be what she'd do to the children. The 'bzou' in "Grandmother" (aka, "Little Red Riding Hood") had the girl eat her grandmother and drink her blood, so why not? Story's moral remains the same: children shouldn't trust strangers (and even more so, how to be a BAD mother, though that is irrelevant to your flash).
Anyway, very nice, and I DID check out this Firth guy because there's such a huge hissy going on over him, and...um...I personally didn't see much similarities...maybe in the style of the flash, but not drawings in particular. I DO hope the low-life flamers attacking you realize that artists actually borrow ideas from each other and it's incredibly rare to find someone who has an ALL original style or way of doing something. Mozart and Haydn borrowed from each other all the time, and Beethoven learned from Mozart.