@SUCCESSOR
Pretty nice looking fairy pond you got here.
@bigjoe
Ooh, a snowy screen! :o Looks pretty painful, too, with all those Lynels. D:
@Nightmare
Meh...the new enemies are nice, but otherwise it's just an empty dungeon room. <_<
@CJC
I like seeing weird mixes of graphics in dungeons, but it helps if the proper enemies are there, too. I hope there's an explanation in the quest's story for why you'd have enemies like ghosts like Ghinis in a mountain-type dungeon...o_O
@lineas
HOOOOOOOOOOOOLY SNARFBLAM TOO MUCH GREEN

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So. Let's assess our situation.

lineas is right out because GREEN.

Nightmare is out because plain.

CJC is out because weird.

Which just leaves SUCCESSOR and bigjoe.

SUCCESSOR's shot is nice and all, and uses the tree and mountain tiles well (except for that part in the upper left corner where there are trees hovering over the water...uh, wut? o_O), though it is also Just Another Classic Tileset Fairy Pond(tm).

bigjoe's shot is also pretty, and puts new tiles to good use. What little water there is compared to SUCCESSOR's shot is used wisely, and the enemies on display are 3 colors instead of just 1. However, the shot does suffer from the same All One Color(tm) syndrome lineas's shot did--it's just that snowy palettes are a bit more acceptable in this regard since they occur in reality as well.

So I voted for bigjoe.