Hi I have a few comments for you.
The top nav is hard to see when it is grey, Perhaps white so it stands out, you also have a border on the bottom and not the top of that same element.
Main picture is stretched and looks a bit wrong, good pic just dont stretch it. The green and blue Im not to sure, your selling fashion so use this years colours I'd use a blue the same tone as that guys pants. Green text on white is fine and I like your form elements, they are MAC forms will they look the same on my PC when I see your page?I have to scroll about 20mm as the page is too wide. Maybe work on the logo as well as it's just text with a few filters on it. Hope this helps.