here is a quick critique . You need longer boards, you need to bring the bar lower (closer to your feet ). You need to sink the bar into the boards (you are doing a kind of touch and go thing) and heave the weight back towards the rack.
Your set up is Ok , but it could be much better. Start with your feet set further back, and really push your arch more, most MM bencher will agree that the set up is down right painful, feet first , then shoulder girdle, then push your ass towards your head and then plant it. Your quads should feel a great deal of tension. When you take the bar out of the rack you should pull your shoulder blades in together ( the bar should sink several inches with your elbows still locked).
Your groove looks better with the heavier weights .
ps. you would think that the guy in the orange shirt would at least offer a brother a spot if he was gonna be walking all over your comfort zone while you were getting ready to lift.... WTF ???
pps. those guys looked quite confused watching you train.