Some dedicate a thread for a particular person and yes you can share all your photos in a single thread, then you can see your own progress and style change over time.Somehow your title "Restaurant" seems plain, I wonder if you can change it like visual restaurant or cafe I know it"s not imaginative but you get the idea.
Back to photo, hands look more natural if it's doing an action.Like for the same right hand position she can start ironing the hand from the top of jeans and end there.Notice the little finger and one next to it look like amputated because it's bent.That's why karate chop look fingers close together look nicer.
Also the left hand could be playfully hooked at the belt strap or both hands could do the same action. Giving space between arm and body make body thinner. Lastly hair issue at left side but not as bad as previous photos. Keep it up.