Design is good. You should firstly make a logo. Also, you can try to put adsense ads to earn some cash from the site (above or below video items, on the left or right..) Good luck.
The site has a professional look and feel to it but it looks incomplete without a logo, you should get a logo asap.
Theme, your theme is fresh and in a good eyecatching and yet not annoying collor. you could do with a logo or custom header on the left top, since that will give your site a whole new meaning on designing point. your content: +1 for having a niche, you see alot of video sites that dont have a niche latetly. the cideos are of various quality so hard to comment on this one. normally i provide link stats and seo stats, but since you state that your site is new there will be no point for looking them up right now. maybe later if you ask for an other review.
Nice desing, the logo isn't working for me, Maybe you should have a best video contest? Or most video views contest?