The part where the company info should go looks fine to me I think its the banner across the very top that makes it look to big, if you made that smaller it'd look well any you could see more of the main body.
Not sure what content will be going in the center of the body but I think it might need ot be wider so the left and right columns are smaller.
The yellowy text on the right could maybe be changed to something like on this site
http://www.ariane-millinery.com/
i'm fairly new to web design so this is just my opinion and it mightn't be the best but it's up to you what to do with it