I would like to add that Nyotengu has very good zoning tools that needs some special attention. Some of them are:
4K (insane long range. launchs you foe far away)
6P+K (slow start up but really good poke when zoning that can be followed by Karasu-Tobi just pressing P after 6P+K, even if you were blocked.)
3K has too good long/mid range. Again, low start up but good range
SSK is another good tool for mid/long range. Is like 3K but while side stepping and with faster start up.
66K another good tool for long range. Fast and quite safe and can be followed by Hiten no Mai if it hits.
H+K. One of her main pokes. Is fast and can be followed by Hiten no Mai. Long range too, but unsafe. So better do it to punish, but not randomly or punshiment is guaranteed.
6PPP has good mid range too and is fast, and sometimes you just hit because your foe thinks you are too far to hit him. The bad thing about that move, ofc, is that you probably will be holded in third P (since all 3 are mid punches), so better do 6PP or 6P.
Did I forget any other move for zoning?