Hey Aino, all this stuff I wrote abt typography was never meant as demand or the like, just so that you can find some info & help on making type look fine, in case you’d want to tweak it.
Like, for the kerning to become superfluous, you could, for example, “simply” (?) make the letters “G” , “I” (here the nice serifs you already made) and “J” somewhat broader, so that they’d run as broad as the other letters.
Peace, Tom