The sentence you enjoy reading aloud still needs a reason to remain on the page.

Pleasure in your own phrasing is a poor test of whether a line belongs. A sentence can sound wonderful and do no work at all: repeating what the paragraph before it settled, or turning the reader’s attention toward the writing at the exact moment they were inside the scene. Sound is not a job.

Go through a draft and mark the sentences you most enjoy. For each one, ask what the reader knows or feels afterward that they did not a moment earlier. Keep those, and cut the rest however good they are.