Any particular reason why you don't use org-mode's latex export (org-latex-export-to-pdf / C-c C-e l p) directly? It will render math nicely, not as embedded images, etc.
It's really because of theming. I was trying to theme my latex document, but it don't know tex well. I do know CSS well though. So theming my header, my margins, my bloquotes, my images etc is very easy in CSS. I have no idea how to achieve this easily with tex.