Octorockoncrack:
Everything looks quite nice and neat; excellent use of Pure tileset elements. Snow tends to a bit of a detriment in screenshots since it looks better in motion, but it looks better than rain.
Is that thin ice that is stretched out across the land and water?...
Orin XD:
This is a quite appealing GBC screenshot. Standard, but good. The only thing I don't like is the small pool of water in the middle of the land bridge to the north. With the flippers, that pool would be awkward. I guess it depends on your quest's items.
Lightwulf:
This loks great, but the quality of your graphics is moving far beyond that of Classic Zelda. There were plenty of games with graphics this good on the NES, but they came much later than Zelda 1. What I'm getting at is that the Z1 elements clash with the lamps, building, and sprites. I think you might want to upgrade from Z1 graphics, because they are far too "flat"-looking next to your excellent new graphics.
Dragonite:
Quite a large number of pathways.
...Um... I have a hard time saying anything else positive or negative about this shot.

Town screens really aren't that interesting. You did a good job, but there's not much to distinguish it from other towns. Keep up the good work, but next time I hope you'll submit an overworld or dungeon shot, or something novel.
Guardian:
Again, even fancier than Dragonite's town shot, but still a town shot. It seems you are showing off the house graphics and the walkways, which both look excellent, but it feels... a little like furniture display at a home improvement store.

Ultimately, I voted for Lightwulf since his has great structure and graphics, and a bit of originality.