I think you have done everything pretty right on this one Ben.
The physics suggests most emission nebulae should look some form of magenta ie. essentially pink, so that aspect looks good to me. There
is some subtle green in the dusty reflection-emission transition in the Trifid, so that's always cool to extract if you can but any subtle suggestions on colour balance variations would be largely semantics, its a really lovely shot of these two perennial favourites
Mike