Cast iron sewer pipe fittings

Oh yeah, the dirt under the house isnt soft loam like a normal pier and beam foundation. No, its freaking random broken chunks of concrete, tennis ball sized rocks and chunks of wood (?) Its like they poured demolition fodder in here! The 2" extends down about another 25 feet, then I believe it transitions to 4" as there is a healthy pipe in the middle of the foundation that leads out to the sewer. The 3 feeds you see are: (bright one) is from washer/deep sink in garage (lots of volume from clothes washer) , the horizontal one is the cleanout to the left side of the house, and the 45 is the kitchen sink. The 2 toilets are 25 feet downstream of the right leg and they are much larger feeds. Yup, my **** is my plumber's bread and butter......