I'd also play 4 copies of
wizened cenn, that is very strong. Notice that some kithkins refer to soldiers, so you shouldn't play too many non-soldier kithkins, or you should play less copies of those kithkin.
Militia's pride and
mirror entity are redundant, maybe i'd play only 2 copies of them. Furthermore i'd play more creatures and less spells and equipments. You should ablsolutely play 4x of
Path to exile.
Surge of thoughtweft is quite good because it cicles itself, but the equipments are pretty bad, especially
infiltration lens, cause you leave the choice to your opponent. Some powerful cards you didn't consider are
Goldmeadow harrier (at least 2x),
Goldmeadow stalwart (3/4x) or
Mosquito guard,
Knight of meadowgrain (4x!),
Mistmeadow skulk or
Cenn's heir (I prefer the first, cause is protected by a lot of things and it has
lifelink),
Burrenton bombardier is better than Kinsbaile baloonist (for me) but i wouldn't play neither of them, absolutely 4 copies of
rustic clachan, and if you want you can try 1 or 2 copies of
Cloudgoat ranger, even if it isnt a kithkin