So first there’s Percy, sort of jerky, a little disjointed, he’s never been much of a fan of writing really but it’s legible - he practiced and practiced when he was little because he didn’t want the other kids to tease him about his dyslexia.
Then there’s Jason, tight and blockish and orderly in true Roman fashion, something of the there’s-only-so-much-room-on-this-stone-arch-so-make-it-count attitude coming through.
Annabeth's might be neat if it weren't so hurried, but who's got the time to worry about something like handwriting anyway.
Piper's can't help but turn out pretty even if her last name is a little less legible but then she doesn't like people looking at it too much anyway.
And then Frank, a little blocky and squished like Jason’s but with the noticeable ease of someone who never struggled with his letters like other demigods did.
Leo’s is just a scribble, tired and irritated and scrawled on foster home form after foster home form and at the tops of half-completed homework assignments that won’t get turned in anyway.
And lastly Hazel's, neat and tidy cursive instilled in her at school by strict teachers who seemed to care more about that sort of thing than seemed entirely natural.