yea they are stretchy, a couple of reasons: the light it too high above them, theres no mylar on the sides(or lights on the sides) so they wont get bushy, and the little light that is reflecting off the walls is being used by the plant next to it.
lower the light, get some cfls to stick down close to the base of the plant, some mylar to reflect light off the walls, and spread them out!
otherwise, they look good man, nice deep green color, no visible defects.
thumbs up dude