Stu,
Nice little selection; if you don’t mind my comments, some are blurred, just try notching up your unsharp mask or do a few more passes, Number 1 would be excellent with just a little more sharpening. You have a little too much colour saturation on some of the shots, it could be down to your monitor (possibly) and some have quite a bit of noise. What kind of processing software are you using? My personal favourites are number 3 and 4.

Hope you don’t mind the comments and keep on shooting, it is the great beauty of digi photography.

All the best

Si