Hi dsziners4web, Sorry I have not replied earlier! I have ranked #67 5th, but I also like #68. They are both really good. Could I encourage you to submit some variations on these that use different fonts. Given the business is nature photography, I'd really like to see a softer rounder feeling font used on 'photography'. Perhaps you could throw in a serif font for 'Andrew Teakle' and soften the colour gradient so that it is less metallic and more natural.
I also really like the leaf you have used in #67. Could you work this up into a letterform mark using A and T? That's what I'm really after as it needs to be able to be used by itself. You could even drop the shutter out if you want as I'd rather the logo represent the subject of my work, rather than the tool.