Uh, I bet you use a lot of duct tape.
Seriously though, I think you should rebuild that thing to cover more of your beautiful little lady. Rain comes down sideways, splashes, etc. Also, the plastic looks suspect. I recommend some 6mil. making two poles taller than the other two and making a better cover.
This weekend is probably my last for good weather and I will be covering my girls. I'll be using 1" pvc down the middle, a few feet higher than the exisiting sides, and 6mil across the entire top, like a tent. 6mil is solid, let's light thru, and keeps nosy folks out of your business.