They look nice and green and strong to me cant see any defeciencies but I agree as an avid WW grower they look a lil small for 5 weeks but ive had the same occur where there arent too many thick bud sites and then in a matter of 7 days or so they start goin like crazy. That stalk looks nice and green is ther any purple veins toward the bottom? whats ur ph and ppm at? looks hydro of some type, lookin good so far tho they look like happy girls to me.