Yikes!
I'm kinda surprised by all that enthusiasm for the Scorpion.
I mean, I really approve of the torso and its shoulder pads, very Cybertronic, and I also see the link to the description of the Cancer MMG from UWZ, but it just looks kinda stuck together randomly. I think the scorpion-body could use some tweaking, so it doesn't look like a torso stuck on an ordinary scorpion anymore, but more like proper leg replacements. Maybe even ditch the claws and/or some of the legs.
I'll probably end up using this as conversion material anyways, because i never liked that scorpion-king centaur kinda thing (but I love the torso).
The Necromutant on the other hand looks just perfect tbh. They're some of the old models I never really liked, but I love this take on them, really awesome.
I also agree with most of the comments about Golgotha. It's a good start, but could use some tweaking. Get her a bit more pumped up, Nepharite horns, and go over the hands again (look at them, they're weird. she's not a crab, is she?)* and it's fine.
*it's mainly the stumpy thumbs I guess. they seem really aweful to have in daily life, even of a nepharite I'd imagine.