Background source: https://www.polygon.com/2017/4/7/15209584/your-name-love
Audio, timing source: https://osu.ppy.sh/beatmapsets/1060444#mania/2220305
Metadata source: https://osu.ppy.sh/beatmapsets/1159567#taiko/2497897
Try and make your bg JPEG instead of PNG as it takes up less space. Also the background quality is not very good. https://cdn.mos.cms.futurecdn.net/RCRvuwjFu5otNDKDRHcd4D.jpg this is a better quality version I'm pretty sure :)