You can see a lot of them here:
But a lot of them need to be registered/reply to post to see.
If you see a dotted box with a lock and words: 本帖隐藏的内容需要回复才可以浏览, you need to reply to that post
If you see a dotted box with a lock and words: 以下内容需要积分高于 10 才可浏览, you need reputation 10 which you’ll get after registering
The person who drew the wallpaper fanart a few posts back has a few great fanart posts, she goes by the name 靄羅 but other than the wallpaper post, the others need to be registered to see but they are really great posts with all kinds of expression faces of Baiyu and Aleno for some kind of RPG setting. The chocolate armor demon king Aleno makes me laugh(made by his butler Kaylen(克里恩 goes with this name in the end)).
Also, there are some at tumblr:
Actually, there are a few fan AMV video, they are great artists so are considered fanart slideshow also, I’ll link to those I know(mostly Kaylen(克里恩) centered):
Kaylen at first Caramelldansen then Aleno laugh at him saying it’s not exercise dance, he started to dance some other song with pretty crazy moves, this is very funny.
24 hours Convenince Store – Talk about Kaylen using his personal time after Aleno sleeps
Kaylen always pretends to be dead when I came home
Look At Me – Talk about Kaylen’s feelings when he found out Aleno likes Simon. He wanted to leave but couldn’t because he have no courage to do so.
Aleno Simon & Kaylen’s story(based on Freedom Days Aleno)- SPOILER