Next part of this question is, do the 90's in the yellow circle cause any issues? Again at the time, I had to do this to get around some waterlines, etc. If need be, I can now go straight down. If it is ok, then I'll leave it, as I don't need more work.
Are there any other clear issues with the plumbing that is shown? The other line in the pictue is the drain for the pedestal sink, it currently has an AAV venting it, so I didn't want it going into the 4" stack that the tub drains into.
Thanks for any help, I will have a few more questions regarding this setup, but will wait until this is settled.