First impressions are key, and statistically first messages without substance are less likely to get replies according to various dating tip sites and online dating sites.
It would've been better to compliment something about her that's NOT appearance based, and then gone on to ask a question relevant to her based on the limited information you've already discussed in real life. If you have none, just ask an interesting question that she's likely to have an opinion on.
Saying "Hey, what's up this is (---)" not only lacks a narrative hook or an attention grabber, it also doesn't urge the other party to send a reply if they're nervous. This means that they might not reply simply because they don't know what to reply with.