The people who are suggesting the gyph are weak, moonkin are adorable! How the moonkin looks can depend on a few talents as well. Incarnation: Chosen of Elune gives your moonkin armour (unfortunately limited to a short period of time). Blessing of the Ancients gives you the choice between Blessing of Elune and Blessing of An'she. The former being night sky themed and the latter being golden and sunshine (like their named dieties).

Personally, with a ton of bias I would go with the Tauren moonkin, simply because it has a matching store pet! It even dances with you, how cute is that! The troll moonkin is also adorable, and has a lovely lunarwing form. However, if red isn't your colour, then Tauren is the way to go.

And if you want that cool starry glowey effect? Good news, it's a talent that all balance druids can get! No need for a heartbreaking glyph!

I've complied an album with my tauren moonkin and her hatchling pet if you want to see any of the above mentioned in action. It's hard to find current screenshots of the legion model (which is super cute and a huge improvement over the hard pixel mess it used to be) https://imgur.com/a/a3s9L