Hi Sunshine, you're blessed with a lovely youthful appearance! I think the main reason you look quite young is simply that your face and cheeks are soft and round. You could make yourself look a bit older through the use of contouring; you could contour to add a sort of depth and make your cheekbones stand out. Your nose is quite soft too, so you could make that look a bit thinner through contouring as well. If you coloured your eyebrows to make them a tad darker, I think that'll make a nice difference too. I really like your hair personally so I can't really suggest for you to have it cut differently, but if you were to cut it, I think you'd find it useful to find a style which is a bit less soft and round, and more edged/layered!