If you want red and purples, take Traps advice and get some Sweet Seeds Red Family. They are kick ass. I have grown three and like them all. They are pretty, unusual to look at, and damn good smoke.
I didn't see any mention of a circulating fan or I may have missed it. For me, that is super important. Jorge Cervantes made it really plain for me : The plants takes up CO2 through the leaves and uses up the available CO2 very quickly. Therefore you need to keep the air circulating to keep replenishing that CO2 around the leaves. They will be needed also to keep mold at bay, etc when your plants get buds on them and tight in the tent.