There's a dull blue and a pink in my edit. I try to avoid strong saturated purple.
And it goes well with most things that have earth-toned stuff on them like yellows and oranges because it's the complementary color.
I can't help but feel that, for this particular case though, it wouldnt be better to include regions that have none of those purples, as much a fan of the color as i am. with that color uniformly applied, it doesnt compliment at all - rather, it desaturates the entire piece.
I think, for a vibrant jungle piece, i'd suggest something betwen the two with a bit more "oomph"
as far as matching nieborg, i think opac's original palette was the closest of any.. though perhaps change a few colors out for straight-up grays and browns
the contrast in helm's edit of course though is right-on for nieborg and art in general, and should be kept regardless of hues chosen