I think I understand where these color choices are coming from, though IMO slight changes would help these sets a lot.
I think the elvish set would look good with a warm woody tan as the base color, to go along with that leaf green - making a wood-and-leaf color combo. This would also help the accent colors, which IMO clash hard with the base kit off-white and green. I think the autumn accent tones would work better against my woody tan base color. A stream water blue would also be a good accent color against my wood-and-leaf base kit proposal.
For the dwarvish set I do like the stone-like greys in the base set. However again the orange accent color clashes. Maybe more of a gold accent would work better?
Going to spend WAY too much money on these, either way...