Wow I really like this, I've been gone longer than I thought!
#4 looks so much more feminine now, and green really brings out the blonde hair, maybe desaturate it a bit so it blends with the more grayish tone of the rest of the crew. If the green still looks like too much I would suggest either coloring one item (pants/top) gray(or some other neutral color) or lighten the item on her hips to a med/light gray color, it might help make the green look less intense after you desaturate it.
I like that high shoe/puffy pants transition you got going on with #3, what if you did that to #4 to show a bit more leg? It could be tricky, it could be easy just throwing it out there.

The suspenders look alright on #2, though I think they would be more stretching against his belly, they seem pretty slack to be holding up his pants.
I did like the coat but the suspenders made him look like a good guy while the coat made him look like a badass good guy or a bad guy.

Is that fire that #3 has? I think someone mentioned before you'd want to make it look more like light reflecting and not like he spilled wine on his clothes and face. But I can't remember if you said anything about that and I'm too lazy to double check.

 
 

Is the  blonde character a boy or a girl? I can't tell.

Other than that I think they all look really great, can't really think of any advice atm..

I have two ideas for the explosion death.

1- make multiple deaths with an explosion coming out in a different area each time to give variety.
2- have the explosion come from the chest ( I think you could get away with it with your current animation).

^^
Not to mention the feet look like they're twisted wrong.
The wolf is facing us more but the feet are pointed super straight/away from us.
Also, is he meant to look starved? Those look like his ribs, poor thing.

I worked on the hands a bit, not sure if it looks right, maybe a bit better than before.
I think I'm only going to go with 3 fingers and a thumb, we'll see.