looks pretty good, but in about a week or so id give a very diluted vegetative fertilizer to it. it could be a bit darker green and adding some nitrogen will definitly speed things up a bit!! good luck and happy growing
Put it in a five gallon bucket with dime sized holes in the bottom and a few around the sides 2" off the bottom,
Give a gentle veg fert and that little thing will blow up, looks very healthy aside from a little light in color, but that's not a huge deal!