Appropriate For Friends' Wedding?

So, my husband is in a wedding on Saturday (he's a groomsman), and I'm friends with both the bride and groom. I am not in the wedding though.

I want to look nice, but not over the top. Their wedding is an intimate church wedding, with the reception in the church's banquet hall. I have naturally curly hair, that doesn't look great straightened, and tends to be kind of frizzy. Do you think this hairstyle is appropriate but not too plain? It's basically just a half updo. I'll post a picture of the dress I plan to wear as well. (makeup is a simple, light smokey eye with a pink-ish nude lip)