No, Vastu Shastra is universally applicable, and all Vastu regulations stay the same.

No, it is not. Vastu shastra is a secular science that impacts individuals of all religions, castes, creeds, and colors.

To live in a fortunate location so that you can benefit from favorable energy while avoiding bad ones.

Yes, it is correct. Vastu will function – or affect – men and women (in the same house) in various ways since they have distinct energies.

Anything that elicits happy feelings is beneficial. There are no pictures of war, sobbing girls, loneliness, suffering, or such things. Something uplifting, such as a nice family photo or a calm scene, should be hung.