Some cool images which are sort of related to the topics of the apps.
(Above Earthrise by Apollo 8 crewmember Bill Anders / PD)
(Copyrighted and used with a paid for license)
(‘The singing lesson’ 1915 painting by Hasui Kawase / PD)
(‘Seated woman with shamisen’ 1820s painting by Katsushika Hokusai / Brooklyn Museum – PD)
(1854 painting by Kunisada / Wellcome Images – CCA 4.0 via Wikimedia Commons)
(‘Shamisen and Coffee’ photograph featuring a Shamispoon / Copyrighted by Kyle Abbott of Bachido)
(‘Thirty-six Views of Mount Fuji –
The Great Wave off Kanagawa’ 1820s or 1830s painting by Katsushika Hokusai / PD)