a traditional forehand toss should get to the gap for and easy par. Some with stronger arms like to try a huge anhyzer shot around the first limb that s in the way.
If you go the backdoor route than throw something straight and keep it close to the ceiling of the gap. A very high forehand or a thumber around the left side are good options going to the left.
A tomahawk or thumbed straight over the trees is the best route to the basket. A big anhyzer can also get you over and fade out to the basket. With certain wind conditions a big hyzer can work as well.