Practicing expressions meme

Anyone partake in these? This is my second now. The first was the, Annoying Frienemies meme. But all their expressions were mostly just annoyed so it wasn't great practice. http://i291.photobucket.com/albums/ll287/21wq/ponies/lightningdust_idiot_txt_zps6e64fde0.jpg

Here's a search result from a ton of artists doing various art challenges: http://danbooru.donmai.us/pools?commit=Search&page=1&search[name_matches]=pixiv*&search[order]=updated_at&utf8=%E2%9C%93 They're all in Japanese but plenty of them have had translations added.