Looks like there is some indica in there, or at least it does not have that pure sativa leaf structure. But any who, looks like your going to have one big cola and little to no side branching what so ever. Depending on the size of your grow set up, this might be ideal for you! Other than that, the tips have slight burning on them, which is good if it doesnt go any further. Its a sign that you have hit the max in nutes the plant can take at this time. When did you start flowering, i.e. at 8 inches, 10 inches, ect. And is it from seeds or is it a cutting? laterz..