you have very legible and clean handwriting, but your proportions reduce legibility. all the letters do not have to be uniformly the same height, many need to be taller or shorter than others. if you look at the early writing books for children learning english you’ll see that instead of there beibg one “tier” for the letters to sit on, there are actually two. Capital letters are twice as tall as most lowercase letters and the majority of a lowercase letter is still in the lower tier, but ascenders and descenders should be full height which helps make it a lot more distinct.