When I pick up beautiful women I have to work a bit harder to get the same results.
What works good with pretty girls is if you start talking to her less attractive friends to make her jealous. You can gradually start showing interest when she “deserves” it.
It’s important that the girl invest in you, by getting involved emotionally into the conversation. When you pick up a beautiful women you should escalate in small steps.
Sometimes it can even be easier to pick up beautiful women because guys are too afraid to approach and if you casually start talking with her you really stand out from the rest of the guys. Also beautiful women don’t have to reject men to get an ego boost the same way average girls do.