Hello Here s my opinion. You have a nice website but i d change some stuff Design is good but the changing background discracts the visitor who might have problems to focus on the content . I would remove it or at least give a visible option to the user to stop it I could not figure out right away the point of the website. Is it just for an event ? Is it here to stay and create a community? You sure want to clarify the message . I would move the enstein quote to the right column and leave the component space for the message the website need to deliver. Navigation is curiously ordered : you have some important information in the about us that would deserve to be on the main navigation for the newcomers. Login is on the right and should remain there, no need to be in the navigation. The images could move to a right module to make space. Lot of what you have in the main navigation could be moved to a blog page, used as a front page, using K2 for example, this would give you more space to talk about it and social network options. You have the content, you have the design, reorganise it and you re on the way !
i think you should remove background image if you can, other than that its a good one . best of luck.