Good end to the first season, albeit a bit rushed. I don't know why Amazon is confining the episodes to 22-25 minutes, but an additional 5 per episode could really flesh things out a bit. Amazon also needs to commit to a larger budget, the effects were downright awful at times, and not in a funny, quirky way. Just in a bad way. I do hope that next season is a bit more episodic, taking time to explore the characters rather than a convoluted, serialized plot.
That said, Chairface Chippendale needs to be the big bad. Although, I do hope that to the extent that the Terror is still around, there is a bit more exploration of the Tick and the Terror's relationship. It kind of took a backseat to Arthur facing the Terror. But in many ways, Tick is the natural heroic counterpart to Terror. As Superian and Arthur pointed out, Terror isn't some Moriarty-esque genius. He is just going around, acting more or less randomly, and then calling whatever falls together a plan. In other words, he is the evil version of Tick: a complete mess of chaos. Heroes are not a match for the Terror because they cannot anticipate his erratic behavior, but by the same merit, Terror cannot anticipate Tick. Tick isn't so much the yin to the Terror's yang as much as he is the yang to his yang and that makes them perfect adversaries.