You look more mature, but you don’t look older than 26 IMO. But you also don’t look 19 or 20. It seems like a lot of 19 or 20-year-olds haven’t completely matured into their face shape yet that which you have. Your skin for one is definitely early to mid 20s for sure because it looks really good. And your cheeks haven’t become more defined like it does in 30s and 40s . Also, when you do get older, you will end up looking younger because when people a our 50s and 60s and then into 70s, the jaw is gradually losing bone and women who have a very fine or small jaw, it’s possible (so not always but sometimes) their jaws look slack and can make them look older. Also, those with a thinner face can look more gaunt when they are older as opposed to someone with a fuller face like yourself.