Hmm... Well none of them are 'bad', but I think some more effort needs to be put into some of them.
TMS: It's Pure.

I personally never really liked Pure's mountain tiles, and it's too dark to see. Not your fault, but I think you should just... I dunno, use a better palette and get some new mountain tiles. Not bad though!

Sephiroth: I'm lovin' the MC graphics, and the subscreen rocks too, but the screen itself is just too empty! Put in some more enemies, put in some more details to make it a bit brighter, and it'll be perfect.

Naldrag: Basic shot with lava on both sides and Ganon standing in front of Link. Not bad, but there's nothing special about it.

Linkus: I love the custom tileset and palette! Excellent screen design, but like with Sephiroth's shot, it needs more stuff going on in it! some enemies on the screen would make it awesome.

CastChaos: Hmm... Well to be perfectly honest, I don't really like it. In
your shot, there's
too much going on at once! Just... Tone it down a bit, 'kay?

And that grass-sand border on the bottom is too straight, too.
Blaman: Nice! I like the greyscale palette.

You've used the GB mountains correctly, I see. And there's a good amount of detail on the ground. I'm also curious as to what those icons in the top-right are for. :-\ You get my vote.
Edited by Beta Link, 05 October 2008 - 10:10 PM.