The phrase "a much more delicate" is correct and usable in written English.
It can be used when comparing the delicacy of one thing to another, emphasizing a greater degree of delicacy.
Example: "This fabric is a much more delicate choice for the summer dress than the heavier materials we considered."
Alternatives: "significantly more delicate" or "far more delicate".
But the death penalty now presents a much more delicate issue for Mr. Bush.
The slapstick is a hoot but then the lyricism takes you to a much more delicate place.
The Red Sox were ahead by 2-0 in that series, so now Arroyo has found himself in a much more delicate position.
Other sculptural tangles to consider are a slightly crazed example by Abraham Cruzvillegas at Regen Projects (involving more rebar, as well as feathers, fabric, chain, beer bottle caps and dried meat), and a much more delicate one made from yarn, wire and wood, by Matthias Bitzer, at Kadel Willborn.
As the presidential campaign has become a clash over a host of issues — from tax cuts to foreign diplomacy to claims of words taken out of context — Mr. Romney, Mr. Obama and their allies have started trading accusations over a much more delicate and personal question: Are you an American like me?
But cuts for the rank and file are a much more delicate issue.
A ribbon is much more delicate and will emphasize the cuteness of your flower.
While the album kicks off with a fiery blow, things become much more delicate as the album comes to a close.
Compared with the tried-and-true formula of festival trap, Hudmo has confected something much more delicate, a minute-long end-of-the-night singalong that lives on well after the festival lights have gone out. Dylan Coburn.
I saw it from a picture, and in person it was much more delicate, so I went with a completely different idea.
Somebody who has no wish to offend when having to tell an uncomfortable truth would be much more delicate.
