Hi,
This is dhanashree malusare i am an interior designer tried to design your space as per your needs. I have share 2 options of which 1st option has plumbing location at the same place while in option 2 have moved plumbing and manage to add tub without making it look clutter. Also have added render images for both the options. Please have a look at both the options. You could also drop me a mail at dhanashreemalusare@gmail.com for any changes.
Regards
Dhanashree