Where's the vent? Wet venting is done thru a lav, tub, shower, or bidet vent. Is the lav drain by the toilet? Shower to the right? You'll need a 2" trap. The clean out in the middle of the floor is illegal unless there will be an access cover with 18" clearance in front of the clean out. Needs to be above floor and or accessible. Santees cannot be used horizontal, should be a combo, or 90. Where does the pipe on the right go to? I know there's a lot of questions here, but that's what jumped out at me.