Drupal templates. Summarized and links to original sites.

Vaser lipo at EA Clinic
This is a slider example using very high quality images but optimized to a file size of only  70k.

Carpet tiles at carpettilewholesale.co.uk
Carpet tiles template, showing multiple images of the same size.

FFco.co.uk flooring Nottingham
In house template for a dedicated ecommerce system offering commercial flooring services