you really should center everything on the vertical axis. the main paragraph is just kinda hangin out to the left.

Look at maybe applying a little more vertical padding to things like the logo (looks crunched).

Should probably also place more emphasis on the things you want people to do like "sign-up" and "try it out" even if its just making them bigger or bolder than their surroundings.

conversions are more important than aesthetics but you're off to a decent start balancing both