They will get huge! Get ready to keep tying and bending them around. A thought I had in regards to that is: if u plan on continuing to rotate the plants it is gonna get really hard real soon. U might forget rotating them altogether and start tying them to the walls and bending them around as they continue to stretch. Just leave your self a path to get in, water, and keep an eye on things. I just looked at your pic again, lol, u have a jungle on your hands my friend. A good problem to have though is... What the heck do I do with all this weed???