Ok, this girl is pretty much looks like a top model, really really hot. I got her attention, but the conversations feels like it's dragging or just too dry. I'm being agressive without being pushy, throwing stuff like "what more can you tell me about you? I want to think you're more than just a pretty face" and so on. She answers, but a bit too dry, what can i do to spice things up?

Break report is the best thing in your case. an example would be like you ask her

You:"so what more is there to you?"
She:"blah blah blah" (some shallow answer)
You: (say something odd on a emotional level) "you know i wonder how fake boobs would look on you! hmm i dont think they would match for you at all (and laugh)
She: (will most probably say) "ohh why do you say so"
And so on.

Also when you chat girls up have in mind to give love. Don't just be the guy who only is chatting to her to fuck her because girls can smell that from miles away. When you chat you should have in mind to make it fun for BOTH of you!

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"Experience is the teacher of all things"