Should make the ground hit work like the electric exo that elementalists got, I'll have to look for the name of it, but yea would be an AoE stun and ground hit, standing stun not launcher stun, make it real strong lel, I like the other combos though, looks nice!
with the longest combo being 4 inputs and the kick combo input deviating from the juggle launcher input after just the first kick, the pressure opportunities are very limited. after 2 hits it becomes obvious what you're going to do. i suggest adding a back grab to counteract this also make kg shock standing opponents