Any advice to update this bathroom

[Nicole Rhim]

Hi All,

Newbie here. I'm excited to finally get my first property but overwhelmed. Any advice on how to give this bathroom some updates while not overspending? (I want it to be tenant-sturdy). I think I will replace the counter sink with a vanity with sink, get rid of the medicine cabinet/mirror, with a more modern mirror, get rid of the shower pan, and replace it with something else (suggestions?), a shower door?

Any other suggestions/color schemes? (I know this may be a personal preference but help would be appreciated). 

Thanks!