Mrainey,
All three plants look to 'obesum', could be hybrid X's.
The middle one is a grafted plant and not sure with others. May have different color blooms, I would say Obesums.
Could bloom again, but depends on how long your growing season is.
If going to get hot temps., both daytime and evening till Oct. you may see more blooms.
If you know that you are not over watering and letting the medium dry back somewhat, then if lower leaves. This can be normal.
They look very healthy.
Rick