I took photo of a cake I made today for my boss's 60th birthday tomorrow and I had a similar affect with the flash and non flash photo. See below
Yeah, I’m guessing that the photographer didn’t set their camera correctly for florescent lighting. Regular indoor lighting with no flash gives that sort of orange-ish tint. Florescent lighting gives off a weird green-yellow tint and if the photographer doesn’t meter their light correctly, everyone will look like they have the flu. ;-)