When it comes to poetry, I'm linguistically color blind and tone deaf. I definitely liked the starlight and dewdrops lines, as well as the next few lines. The somewhat symmetrical start and end is also a nice touch. Here's the best I can come up with for suggestions:

It was just that night we shared,
Upon a hill,
Beneath a tree**.**
To match the tangled shadows overhead
Our bodies entwined in tumbling ecstasy.
Sprayed with starlight,
Drenched in dewdrops,
A famished celebration of selves too long denied.
A passionate feast 'til dawn did take the night,
Encircled in your arms I thought I'd died

So sad, to sense the parting that must be,
From heaven found one night,
Upon a hill,
Beneath a tree.

---

Sorry I can't help more.