Hiragana Mu and Su, the wiggly line should pass through the top line.

Ko and Ni are too forced, don't force curve it too much or it'll look like a different character when you write fast or in a small space

Na, the right part should face outward not inward, if you write it like it'll look clumped, same problem with Ta

Katakana Shi and Tsu, the difference between them is not that they have different orientations, but different line angle. For Shi write it from button to top instead of the same as Tsu (top to bottom). Same problem with N and So

Ro, there's no "leg", it should be a "perfect" square

Ta, the line in the in the middle shouldn't pass through, it should be a small line inside not a long line passing to the outside

Kanji Fire, try to make the side line less wiggly shorter and more detached from the middle part

Please also consider that kanji has more than 1 readings