You've been flowering it for 2 months?? It "looks" like it's just 4 weeks in or so. Of course different strains are different but yeah...that thing doesn't look even NEAR ready yet. What's the strain?
Looks to me like it has a GOOD 4 weeks left. They should fatten-up then the pistils should start turning red/brown and then you'll still have a couple weeks left (again, depending on strain).
I think of the flowering cycle as several mini-cycles. First is the stretch and showing sex followed by slower stretch and what my wife calls "stacking"..when they start to really produce flowers and the nodes start stacking up making big cohesive colas/buds, followed by the fattening/bloating of bracts and dying pistils, followed by ripening/flush.
Yours look to be starting the "stacking" segment. Frick..I LOVE that word.
Now for the mandatory warnings...I could be wrong. Please don't take my OPINIONS to the bank. These are just my opinions and of course YMMV and these opinions are just FWIW, AFAIK, IMO, IMHO...blah blahblah