I echo the sentiments of posters resistant to large-scale, vertical development, but realize that the option is horizontal sprawl; all areas of the Negril may not suffer the same constraints, so guidlines should have some flexibility. Can we say "nothing over XXX feet tall?" I think that's too limiting.
Definitely maintain beachfront clearance, and definitely keep public access to all waterfront!
As far as the 'color and form of bldgs and fences to keep amenity and design ' goes, I hope this assumes (rightly) that Negril is an ecclecticly decorated town with NO limits to design! I like the haphazard colors and materials!
Above all, maintaining the natural biota and environment are very important and should be paramount.