plant looks great IMO
but wuts up with that red light? its not helping, just wasting electricity so get rid of it, and listen to widow maker, shes on point with her analysis.
although u might not have heat issues with the 50w halogen, halogens are not made for growing bcuz they dont have the right spectrum for growing. they put off immense amounts of heat after being on for only a short while, if put too close it can fry ur plants, so thats why we dont use em to grow.
when u flower u may need to at least double the amount of light u have. plants need a lot of light during flowering, particularly the red spectrum which U can get from a HPS, the fluoro tubes are best for vegging
good luck