My wife took Dr Adrian Woodworth and he's not that bad. He may look unfriendly but after a few visits, he will open up and let u know the do's & dont's and the most comforting word he kept mentioning to new daddies like me is 'Don't worry, baby fine, mummy fine' up to 3 times per visit lol
You can try Newborn, Baby & Family Photography - P.S. I Love You Photography by Patricia Seng but this place isnt exactly a studio but more to a HDB flat in Punggol :) . But tbh, my baby photos she took are wonderful considering her affordable pricing and we're pretty happy with her services...