Basic website design for product catalogue - HTML only, responsive, clean

General information for the website: Product information website
Kind of development: New website from scratch
Num. of web pages/modules: 5
Description of every page/module: I'm looking for static HTML/CSS. The design must be responsive.

Page types:
- Product (displays images, product stats, product description, price table, call to action). Has a popup with two fields and save/cancel button.
- Category (displays all products in that category, with pagination, (product name, image, price, call to action))
- Contact us (with contact form fields)
- Full text page (about us, terms, privacy policy). These will just be pages of text, but only need one designing.
- Homepage (this will either display partial category page, or fixed images). Undecided at present.
Description of requirements/features: The product page will also need to be able to display success/error/warning/informational message at the top. Normally only one at a time.

I already have a working version of the site available. Please send a message if you would like to look at the URL. I'm looking for something similar to this, but it needs to be different (so Google doesn't think I'm cloning my own site).

Repeat work available if the end product is what I'm looking for!
Extra notes: I'm looking for someone located in the UK who has an excellent standard in English. No generic responses please.