I have never thrown away a nymph, no matter how un-conventional it looked. Trout are not that discerning (IMO) underneath. That said, I would tie more like the second GD as the proportion between abdomen and thorax looks better. Also, on that one, I suggest a smaller bead or bring the thorax up so the back end of the bead is "buried" a bit in the fore-portion of the thorax.
For reference:
http://www.troutnut.com/fullsize/picture-im_extax/79