Here is Monster, a superstrong villain who has a robotic hand. The hand can impart massive vibrations to destroy objects. His favorite technique is to grab someone by the head and vibrate, causing massive brain hemorrhages.

Here is Goketsu, a Japanese hero with an enchanted spear.

Nice work. She's obviously a taller than average girl and the gritty scarring reminds me of Valentina Koslova from The Jackal. I like the colour scheme. I like the style. The only issue I have is that she appears to have a head and neck that is slightly too small for her frame. Almost like the Space Marines in Warhammer 40K Did you maintain the scale ratio when you enlarged her frame?
For example, take a look at my 'Larger than Normal' character
A few Old Ideas, a Few New Ideas
Let me know if you agree.
Michael
Ok, I come back and find that you posted more whilst I was doing my original reply. Now I have to gush about Pisces Amethyst because, oh my god, that costume, that hair,that expression, that hair, that pose, that hair... I mean, dude.
Did I mention I love how you do hair.
Also, if I remember correctly it was Dandelion then Sakura that were your first of 10 COTWs.
@JR, glad you like the new version. The original Dandelion was one of my first creations that got character of the week. It blew my mind that I was even nominated. Definitely holds a place in my heart for that reason.
God, I remember when you posted the original version of Dandelion dude. Still one of my favourites of yours. The new version is super cute, the outfit is great and I really love the hair, especially the green strands.
More works:

Leo Peridot

New version of - Pisces Amethyst
@Michael, really glad you like the characters. I remember feeling self conscious about posting some of these creations, so your kind words remind me just how silly that was.
Jeimuzu, I like your use of Transparency. It works really well. Reminds me a little of Green Lantern power ring constructs. (totally unused potential as far as I'm concerned. They could do so much more)
I also like your character of Hypnosis. Really creepy in a 'American McGee's' Alice-in-wonderland-gone-very-wrong kind of way. Very cool
Michael
Some more creations I never got around to posting:

New version of Dandelion

Mongoose Zero

Demon Five