I think that's the best you've ever done!

I've skimmed over it. Disappointingly I didn't spot much to moan about!

SEO, Driving Traffic. 6billion has a missing space.

Blog. I think the design has something missing - would be nice to see some delineation of the articles.

Contact.
Please note that we will endeavour to answer all enquiries sent via email or enquiry form within 24hours
Seems a bit pompous and overly specific to me. I'd rather see "We'll try to respond to all enquiries within 24 hours." . I might add "If your enquiry is urgent, just give us a call."

Even if you don't change the copy, a space after the 24 would be good!

Just niggles. Superb job.

Paul

[ edit: My favourite element of the design are the four squares separated by thin lines. I'm going to steal that.. ]