Satin will definitely look better. Many options. SK's are super sweet, but they are going to run you a pretty penny.
It all depends on your wedding budget. You can pick up a satin AK pretty cost effectively off the exchange.
FBMLE, FBMSE, all kinds of big satin out there for pretty great prices.
Looks like a great engagement photo.
I have been married for 10 years. Did not even know about Busse when I got married, so it was not even an option.