This about right for 17 day's? All organic stuff, great nutrients from Fox Farm - AN. Really trained the crap out of them, hence the lack of height and abundance of bud spots on the top layer: Picture 1: Picture 2:
Yes, for 17 days I would say that is about right. It looks like your lights have been too far away from the plants, not enough light or both because the node length is very long and stretched. Anyway, make sure the room is pitch black during their night time and you will be ok.