UPC Wet Venting Bathroom help, Version 3,122

[srttruck]

Ok, Hello all. I've been a long time lurker on this site and have learned quite a bit. I've read a pretty much all the topics on wet venting and still struggling on proper design. We're working with UPC 2015 here. On all 3 of my photos I'll upload here I'm thinking of venting on the Lav's.
Brown Lines 4" ,Green lines 3", Orange lines 2". Any help would be appreciated.
The first picture is a back to back bathroom.

Thank You

 

[Reach4]

Looks ok to me. I did not notice the post before.

 

[Sponsor]

 

[Tuttles Revenge]

Whoo.. got to bust out my dusty old 2015 book!

Looks good except it looks like your trap arm lengths need to be verified for wetvent2. I know they're just conceptual drawings, but max length is 60" for the shower and 72" for the toilet. (table 1002.2)