I came across the Rockology3 Etsy store today and was extremely impressed with the aesthetics of the front page. First impressions are everything, and this is what I saw when I opened the page:
The monochrome theme is supreme. Well done.
I also thought this page from Etsy seller IvoryMorgan was very visually consistent and brilliantly coordinated. This shop even looks complementary with the orange of the Etsy logo: