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Artist's commentary
Cool and Cloudy Evening Sky
Into Summer
Mentaiko Lab Touhou Arrangement Album "Stars and Clouds"
XFD
https://www.youtube.com/watch?v=QecPqO5BUaQ&feature=youtu.be
Booth
https://mentaikolab.booth.pm/items/2051095
This is an advertisement illustration, not the album cover.