What do you think ?

on my 3rd grow, day 40 flowering SIM-13

whats the finish flowering time? leaf looks like its turning yellow.
btw. turning off the hps and taking a picture would help you more.

Dude your doing fine, dont need a better pic to see that, they can help with problems but at day 40 with that growth they are looking sweet

Nice! They look like they will give you some nice buds. Keep up the good work!

Looks fine to me mate, what's the expected flower time??