Ok first off to note your primary concern. The colours. Now there can be the same color palette for 2 different moods.
There are a few examples of this.
CLick through the moods and there will be a couple that use the same colours.
To note your second concern. The animations. Not all of them have to be animated.
Although I will probably do one that is animated. Not all of them have to be.
look at the Lurking mood or the Normal mood or the Dead mood or the Relaxed mood.
All of those stated moods have no animation.

I was already doing stuff like that
These are simply sneak peeks
As I said I am still fixing the kinks and also changing up the moods themselves.
Be patient. These are not the final results. They are just to show people that I am working on it.
So people didn't think I abandoned the idea.
Literally, the only things that these are showing off are the faces and the lettering. The colours will be changed.
But atm they are placeholders.
Final products are soon to come. you just have to wait until they are here....
I am picking from some lighter colour palettes. Thats the only info I have on the colour changes..