2,3 and 7 shot that you defintaly looking with a good eye - some more practice in the field and I think you will be onto a great thing! Shots are a little oversaturated and contrasty for my liking, though I can see the style aspect at play.
Must say I think the last shot is the best of the set, the different colouring works well and brings out the details in his eyes - a tricky shot since the sunlight is cauing blowouts, but dispite this you did get the darker areas to expose enough to show their details - so I think it was right to sacrifice the highlights for that added detail.
The only way I know to have tried to go and not get the blowouts would have been to expose for them and then use fill flash to brighten the rest of the shot