Sleeping Beauty pq question

[STARSCREAM]

Hey guys, I just got done watching Sleeping Beauty and just like everyone else was astounded by the pq and the aq was great as well. The colors and animation are unreal!! . I do have a question though, I was wondering why there were some scenes/moments that appeared outta focus/blurry on certain parts of the pic or character. To clarify, the whole pic is not like that but just certain parts like an animal or its face. For example, at timestamp 28 min. when she is sitting with animals in forest if you watch scene the animals in middle of screen are blurry/outta focus looking especially their faces. This occurs in other scenes as well but in alot of scenes everything looks crystal clear. I was just wondering why this is since it is animation I wondered why some of it looked outta focus.?