(May as well give this a shot...)
Mahou Shoujo Ikusei Keikaku:
Background Music: The main chorus of this (starts at 0:53) till the end of the song; have the beginning fade in quickly:
Top Screen: https://pbs.twimg.com/media/Cyi1xulXAAAfdpm.jpg Use the top half.
Bottom Screen: Same pic as above. Use the bottom half.
Folders & Borders: http://puu.sh/wd1du.png The candy seen here is used for the middle, while the rest of the folder uses the surrounding area (minus the text). The border choice is up to you.
Preferred Color: Night sky blue (if that makes any sense).
Comment: (Optional) Custom sounds for opening, selecting, and closing a game/app and opening your 3DS from Sleep Mode that use sounds from the show.
Kemono Friends:
Background Music: From 0:38 till the end of the song; have the beginning fade in quickly:
Top Screen: https://myanimelist.cdn-dena.com/images/anime/2/83518l.jpg Try to fit in all of the girls' heads. If it's really hard to/impossible, use the five girls on the top for the top screen (with the logo) and the rest on the bottom.
Bottom Screen: Refer to above. If the former works out, use this instead:
http://img1.ak.crunchyroll.com/i/spire2/e094a89829d3fad0ae0dab961de8bf561490801707_full.jpg.
Folders & Borders: The paw in the above pic's logo is used for the middle, while the rest of the folder is safari-like. The border choice is up to you.
Preferred Color: Brown.
Comment: (Optional) Custom sounds for opening, selecting, and closing a game/app and opening your 3DS from Sleep Mode that uses Serval's lines from the show.
Thanks in advance!