it was hard, but it was a display of taijutsu unlike others. I see future for you xD.
Now, a combo is basically kicks and punches, this ones can be enchanced by chakra concentration in the limb you're gonna impct on your opponent. Now, the attack itself, was very good though I kinda find hard for you to keep you momentum after delivering the kick to the ankle of your opponent's. Unless the opponent jumps above your leg or backwards, leaving him very exposed to the latter kicks while in the air. Weakest while jumping above the leg sweep.
Continuing, I mainly set towards the joints and and other movement affecting spaces of the body. Like the back of the knees, the sternum, the lower belly (typically winding out the opponent), The space between the pecs and the shoulders, under the armpit, applying a pain compliance lock on the wrist (this is done by grabbing the opponent's hand in such way that the fingers are looking inwards to the arm and adding pressure to make the wrist hurt like hell and thus "control" your opponent on the basis of that pain). Also we have the shoulder-blades and the sides of the quadriceps. And my favourite, spin wrecking combos, in which i aim to strike the base of the spine, either by sheer impact or simply applying a lock while my opponent is on the ground in which I place my knee on it's base and pull the upper body in my direction. This results in spinal dislodging for the opponent.
But here's another important point in combos, move! Strike multiple places at different hegiths and momentums. the opponent finds it much easier to strike you when you're not planning to move. Unless they have sharingan, they might have quite a hard time responding to a combo while in movement.
Have you gotten things clear, do you wanna make yet another combo but this time moving? (find your own spots to hit too, amaze me. Feel free to strike my kankuro clone with 7 hits in whatever place you can imagine)
, maybe after your new combo I'll get inspired.