John, I think it's difficult to tell the sharpness of the lens after processing ( I assume USM ) plus resizing for the web.
Having said that , these shots are excellent.
The colours and vibrancy of the shots jump out at you.
For me the best shots are of the Black Mount. But then I say that with prejudice........... I love the area.
Loch Etive from the Glencoe side is a shoot I plan for this summer. I'm also thinking of something a bit further north. 
Keep them coming John.
You're doing a great job for Travel Scotland
Regards,