The sample photos on this site, with their authors and licences. All come from Wikimedia Commons, resized, with their metadata removed.

FileOriginalAuthorLicence
allium.jpgAllium rothii 1.jpgGideon Pisanty (Gidip) גדעון פיזנטיCC BY 3.0
apple-blossoms.jpgApple-tree blossoms 2017 G3.jpgGeorge ChernilevskyPublic domain
cape-coast.jpgCape Hinomisaki Izumo08s4592.jpg663highlandCC BY 2.5
dry-valley.jpgBarranco Valle de la Fuente - Fuerteventura.jpgH. ZellCC BY 3.0
fell-lake.jpgAn abundance of trees surrounding Sjábttjakjávrre (DSCF2599).jpgTrougnouf (Benoit Brummer)CC BY 4.0
forest-in-fog.jpgLas w porannej mgle, gmina Czernichów, Rudniański Park Krajobrazowy, 20240225 0810 6625.jpgJakub HałunCC BY 4.0
frosty-forest.jpgOszroniony las wczesnym ranem w Pozowicach, 20241214 0755 2822.jpgJakub HałunCC BY 4.0
mountain-lake.jpgGokyo Lakes, Dudh Pokhari, Nepal, Himalayas.jpgVyacheslav ArgenbergCC BY 4.0
mountain-massif.jpgAkka massif seen along the Padjelantaleden in Stora Sjöfallet National Park (DSCF0983).jpgTrougnouf (Benoit Brummer)CC BY 4.0
rocky-point.jpgDelimara Point Malta 2009.jpgFelix König → Derivative work: Steffen Schmitz (Carschten)CC BY 3.0
shallow-water.jpgDalyan water 2019 G1.jpgGeorge ChernilevskyPublic domain
spruce-forest.jpgPicea abies forest in Prémian.jpgChristian FerrerCC BY 4.0
swamp-forest.jpgSwamp forest of Palokallio conservation reserve in Kuninkaanmäki, Vantaa, Finland, 2021 April.jpgXimonic (Simo Räsänen)CC BY 3.0
tree-and-mountain.jpgA tree and a mountain along the Padjelantaleden (DSCF1065).jpgTrougnouf (Benoit Brummer)CC BY 4.0