Hello Kittens. Here is my candid opinion. The header portion is clean, modern, and includes a great three color scheme (the plum-ish color of your sticky shipping banner, the tan of your logo, and the dark grey). After that, it gets sloppy and looks amateurish.
Here is what I would change.
1) That purplish/blueish drop shadowed list. It looks really bad. Lose the bullets (in CSS it is list-style-type: none;) and drop shadow, then match the text color to one of the three colors in your header. If you have to have color, use the plum color.
2) Your line 'Makes a great easy gift...' should be one of your list items above.
3) Your mailing list bubble. Again use one of your three header colors for the background and also make the corners square as the outlines of your four rings above are square.
4) If you must keep your 'Or browse...' line (which could really read 'Browse our shop and get your ring on') again, match one of the three good colors.
Your SHOP page is very clean and professional looking because it lacks the busyness and color mis-mash of your home page. The only thing that I would change would be to go into your shopping cart plugin and match your link titles to that plum color.
Hope this helps, DF