your not just going to use the light that comes through that window, believe me people think it would work but chances are it will not. i can tell from the pic that they are to tall for there age and may FALL OVER if left like that. and you have like 20 plants in that small area they will all start fight to be the tallest and get even more messed up. you got an ok start and all you need is bigger containers and a small floro above them to increase the light they are all ready getting. i hope you try to do this then post in a few months.