Thanks for all the responses so far
.
I won't go so far as to critique individual logos at this point, but here's a bit more feedback on what scores points.
1) good horizontal use - remember it'll have to go as the header of a website
2) you don't need to shout 'simply spa' to say 'simply spa'.
http://r-industries.net/ae%20art.png while using a default brush was one of the logos that made me thing about opening this competition here.
3) 'natural' colours are good
4) cohesiveness and simplicity are good. an icon or iconic design generally makes the difference between straight up text and a 'logo', the more the two come across co-joined the better.
5) sans-serif or unfussy fonts get marks too
hope that helps - just want to say that i'm very happy to have so much of a response, so quickly.
John