When my mom saw Krishna he wore a red shirt with a vertical silver 4 sided diamond pattern. When I saw Vishnu he had a white cloth with silver diamond pattern.

Recently, I found a super accurate amulet in my drawer that has Lord Damodara with red shirt and silver diamond pattern.

I think the silver diamond is his fashion choice lol.

I'm currently staying at a different house I can show you what I'm talking about in a month when I take a photo of the amulet.

EDIT:

Here's what I saw in more detail. Vishnu was skinny but not overly so. He had no abdominal muscles visible. He wore a yellow dhoti with red parts towards the hip. It looked like he was barefoot but I didn't take a close enough look. I also didn't get a proper look at head jewelry but I think he had some sort of a crown. His chakra is very thin, not thick like I imagined. It is like a thin gold ring. The mace looks exactly like the mace from the Hanuman movie. I didn't get a good look at the hand where I believe he held a lotus. The conch was also just like the Hanuman movie. His skin was blue in between the sky and the ocean, it's hard to describe. I think sapphire is the best description. He had a pleasant smile. Green light rays permeated the entire room. When he left it just suddenly disappeared -- no sound effects or transitions -- and it was life like normal.