You have a lovely youthful face but I think there's a contrast between your plump skin and your hair, which does look kind of dry/processed. Sorry, I know you were asking about make up but I think your hair needs to look as youthful as your face or it just won't work as good for you.
If you want to keep your blonde it would really benefit from using Opalex 3, it's a use at home weekly treatment to repair bleached or overprocessed hair. I use it and it's amazing. Wet hair, no washing, apply a coin size blob and comb through, leave overnight if possible and the next morning your hair will be transformed. It's not cheap but a bottle will last you months and months.
A bottle of Fanola - no yellow shampoo will give you the white look you're after without further bleaching or toning.
Check out reviews on the internet for Opalex 3 and Fanola no yellow.
I agree about your brows, I found having them done at a salon (I have them waxed and coloured) gives me no scope to pluck myself as they don't grow back as unruly.
Another tip I think you'd like is to get a pack of individual lashes (short length is plenty long enough) and a tub of lash glue. They're a couple of pound each from the Internet. Just use one lash at the outer corner after you've used a curler and mascara, it will really open up your eyes and it's easy enough to apply just one, even for a novice. To remove at night, and it's advisable or they'll itch, is to use a little olive oil on a cotton ball and kind of hold it then swipe downwards, they come off really easily. It's amazing how just this one lash can give the impression you have big healthy eyelashes.