I think it would help if you write some reviews and comments about the gadget rather than just posting some specs and then putting an affiliate link.
The only I would suggest is this: I would spread out the images of the gadgets so they stretch from under the title to the sidebar. The empty space under the title could be used. Besides the images do look a bit bunched together. Good Luck!
I think the colour scheme is good, and so is the layout of the site. I would recommend modifying the About page so that it displys relevant information not just what it currently displays. You could possibly categorise the products you review, which would help the people to navigate the site. I would also recomend changing the Author text as it seems just auto generated text atm. Kind Regards.