If the master bedroom is in the South-West, can ancestors' photos be put up in it?
No. Ancestors' photos should not be put inside the bedroom, even when the bedroom is in the South-West.
Related questions
A client has an exalted Saturn and a debilitated Venus. Can the bedroom be made in the West?
Yes, it will be very good. With an exalted Saturn, make the bedroom in the West without hesitation; WSW or even SW can also be used, but when Saturn is exalted the West gives the best results.
A couple sleeps in the SW; one has an exalted Rahu and the other a debilitated Rahu. Can they sleep there?
Yes. After marriage, as in the hathleva ritual, the planets of one partner overlap the other, and the exalted planet's influence prevails.
Can a photo of Sammed Shikharji be put in the bedroom?
Venus and Jupiter are never friends. Sleep belongs to Saturn and the comforts of the bedroom to Venus, so a Jupiter picture like this suits the bedroom only if you observe celibacy (brahmacharya) and restraint.
Can the mountain scenery be used when the SW or SSW is cut or extended?
Yes. When it is cut, the mountain scenery is used to extend it.
Do paintings or decorative idols of God also need correct placement?
Yes, they also represent a planet and should be placed correctly. A consecrated God's photo should face North or East, or West if that is not possible, but never South; South-facing is for the photos of ancestors who have left this world.
Does Rahu in the 8th house also rule out a South-West bedroom?
Check only debilitation, not the 8th house. Not every 8th-house placement is bad.