[rikacomet]

Just to add as feedback to that: I much prefer the Jpeg render of 2 things in particular in that sample image. First, the brownish stone on the lower-right corner. As we as the car tracks. Regarding the car-tracks, the rough look in the Jpeg render looks more natural to me. The stone is though only slightly better in the jpeg. For the rest of it, Daala wins! I specially like the thin, tall leave-less tree on the left.

[indolering]

FWIW, I know that there is some research showing that students (over time) express a preference for MP3 compression artifacts. Something similar could be at play here.