Getting a image with an adequate license could be a bit difficult... but getting permission from the owner is more easy.
I found an iustration of a hairgreen girl -> https://www.deviantart.com/phibonnachee ... -682775909
The owner is an osu user (is he phibonnachee? both are from Canada, so i think yes)
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my map -> https://osu.ppy.sh/s/260777
I found an iustration of a hairgreen girl -> https://www.deviantart.com/phibonnachee ... -682775909
The owner is an osu user (is he phibonnachee? both are from Canada, so i think yes)
SPOILER
there is another image, but it is not suitable for a bg lol https://www.deviantart.com/phibonnachee ... -543057823
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my map -> https://osu.ppy.sh/s/260777