This is awesome stuff, the part of guro I enjoy is the act of killing itself, the more inventive the better, and personally I prefer it if it's kept separate from sex/fucking etc. Every artist, especially ones on the 3dcg board, seem to want to just make 5 seconds clips of the corpses of different characters getting fucked in different new holes over and over again, it's fine to cater to that market but it gets a little bit dull after a while. I'd say most importantly make what you want to make, but go for what isn't already being done where possible. Stuff like the bleach, smashing in heads and suffocating are really cool ideas because they incorporate different SFM resources and just feel fresh and original, qualities like which mean that the actual quality of the animation could be much worse than it is (which is really good by the way) and the content would still be great.