Are the current graphics final?

I have played the BETA for about 2 days now (yeah forgot I pledged 40 dollars to get acces) and what I wanted to ask is:

Are the current graphics / visuals etc final or will we see a bigger improvement as time passes by?

I ask this because the game is already in BETA.

Game style in general is final. Graphics quality is not, game don't even have post processing yet.