Originally Posted by Nikopol
But i think one thing becomes clear for me: the copy&paste K-On! artstyle in all their shows is becoming a bit stale for me. Sure their shows keep selling, but from an artistic point of view, it's rather too repetitive.
This is the only show since K-ON that I think really uses the same style, and so it's no surprise that it's from it's the same character designer, as well as the same creative team as a whole. Even then, I'd say the similarities vary depending on which character you're looking at. The younger the character, the closer it is, I guess.
It's apparent, at least to my eyes, that Hyouka definitely used a different style. Anyone would agree that Nichijou was totally different too. That leaves Chuunibyou, which I feel is more of a fusion of the Horiguchi (some of the overall softness) and Ikeda Kazumi styles (the sharper close-ups) than just one or the other. ultimatemegax also made a good point in the Hyouka 11.5 subthread about how they use different color palettes, and how that gives a unique mood to their three most recent shows. This is also where Tamako stands out, just compare the overall coloring for this and K-ON! and they really are very different.