He's adorable

I wonder why he likes that particular corner for his special place

I just had to calculate what 9 ounces was in grammes! I can't imagine ounces for some reason

So about 255g! He's a big boy.
Sometimes it's the type of lighting affects photo colours - eg if it's low light/dim or if there are lamps on - some light bulbs can cause an orangey cast and different types of light bulb can cause a bluey cast.
Or - you might accidentally have a filter set on your phone? Assuming it's a phone. Which can change colours to give certain effects,
It's very hard to get good photos of hammies when they don't like a lot of light!. Dark fur is harder to capture as well

We can see he is a beautiful boy though.