The aft-facing shot looking out towards the nacelles from near the top of the saucer when Spock's shuttle is en-route has the nacelles far too close together.
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I think the (currently non-existant) ultimate version would be some sort of amalgam of this and the DE.
The nacelles there don't look perfect, but at least the lighting seems appropriate; I never objected to that because I love the little lounge miniature they are shooting through at the approaching shuttle.
Any ultimate version for me would have to go back and try to recreate the original discarded Vulcan for TMP, which is basically a really good version of the Vulcan you see in the theatrical, before Paramount pulled it from Trumbull's guys and gave it to somebody else to do (TGT has some info on this.) I also wouldn't be adverse to somebody trying to apply a few of the Abel/Taylor warpbubble/spectral colorshift notions to some Enterprise flybys just to get an idea of how it MIGHT have worked (you probably wouldn't even need to do a CG ENT, just use the existing model shots and then do the roto and graphics over it.)
Also, any ultimate edition for me would have lots of trims, since some of the stuff I dislike most seems to be in all cuts, like the guy escaping Epsilon 9, which wouldn't pass muster except on a Gerry Anderson show in my book.