1/2 to 3/4 Bathroom Venting

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Existing half bath on slab, planning to add shower and move toilet.

I would like to expand my lower bathroom. It is a split-level home with a lower level (bathroom location) and a full basement (mainline location). I have attached a few drawings and would like to make sure the WC will be properly vented via the existing "to attic" vents in the basement and a 2" AAV at the shower (in closet wall with vented grate). Does the overall plan look correct?

The existing lav is on its own floor drain/vent and isn't being moved, so I don't believe I need to make any changes to it.

Thank you!


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