These are kind of intriguing. Can you change "shiel" to "shelf"?
I'm also wondering what it would look like if you took the tagline "shop here. buy there." and put a shopping icon in between "shop here" and "buy there"? Perhaps a shopping bag with a shadow effect?
Just an idea. Thanks for submitting this concept. I like the clean lines and I like the "shiny" factor of the icon.