I'll have to mention that the combat styles is still getting entries, there's a lot of possible styles out there.

I do recommend you pick up one at least, you gain everything in the style as long as you're using the stances, plus the stances give you benefits. Learning new styles isn't difficult, the opportunities are just at set points. Any technique you list in your sheet is also able to be used regardless of stance.

Oh yes, the Zora Fencing style is also used by Hylians. It's actually just the realm's preferred spear style.

By the by, down the line and decently deep in the RP people may start creating their own unique style or magic school, so for now take what you can.