No one is offended, its called constructive criticism, if you cant accept it, then there is absolutely no point opening a shop..
Its the same that a Film critic would do, a Food critic, well we are all Shop critics except we dont get our review shown on tv or put in a newspaper.
You dont have to change it, you dont have to trash it, its not offending anyone, not everyone is gonna love the layout or the colour. We all get this on our shops, think of it as an initiation.