These are at the side of the house not facing the street. With the air conditioner units and the bins you really do not want to call attention to the windows. Don't do anything.

I agree with Rho. Perhaps some sort of ventilated privacy screen that would include both a/c units and the trash/recycling cans. I have the same blue recycling can in my driveway but nowhere to put a screen, and it really bothers me.

You could also consider a hanging a decorative piece of outdoor art or a lovely wall planter on the brick between the windows.

No. No more things in that small space: garage door, 2 windows, fireplace, 2 a/c units, garbage cans! Whew! worry about the inside and not having to look at all of that! If you really want to do something, move the trash cans elsewhere out of sight and add lattice in front of the A/C units fronted by large planters maybe even with a large garden obelisk so you can train a clematis or some such.