3.1. great start-but IMHO i like the grisly toned beard look, kind of crisp whisker look, but it deff a good shot to work with
2. You could do a better crop with this one, use the rule of thirds for one of the windmills and crop the other one out
3.one of my fav, just because you can really see the raw emotion, in their faces, and the postures towards each other, really sends a message, and great use of Dof, really works nicely
4.can't really say anything negative about this shot, although it might be a tad bit busy, but i love long exposures, especially rivers, great forest atmosphere.
5. doesn't do much for me, the hay(which somepeople might like) is distracting, but its an interesting shot non-the-less
6. shot, isn't crisp enough, and your subject( i assume your focusing on the house/barn) doesn't really stand out, and rather than have it dead centre, use some compositional techniques.
Good stuff though, can't wait till you have more, any questions about my critiques hit me up with a pm and ill try explain myself better