Public domain:

https://upload.wikimedia.org/wikipedia/commons/d/da/Bark_texture_wood.jpg
https://commons.wikimedia.org/wiki/File:Ipomoea_batatas_leaf.jpg
https://commons.wikimedia.org/wiki/File:Milky_Way_Galaxy.jpg
https://commons.wikimedia.org/wiki/File:N%C3%A4sinneula_September_2011_3.jpg
https://commons.wikimedia.org/wiki/File:Tour_Eiffel_vue_du_Champ-de-Mars.jpg
https://commons.wikimedia.org/wiki/File:Big_Ben_from_the_Westminster_Bridge.jpg
https://commons.wikimedia.org/wiki/File:Operation_Upshot-Knothole_-_Badger_001.jpg
https://commons.wikimedia.org/wiki/File:Texture_P7180164.JPG
https://commons.wikimedia.org/wiki/File:United_States_one_dollar_bill,_reverse.jpg
https://commons.wikimedia.org/wiki/File:Front_view_of_Statue_of_Liberty_with_pedestal_and_base_2024.jpg

CC Attribution 4.0 https://creativecommons.org/licenses/by/4.0/ :

tex_building_1.png is based on
https://commons.wikimedia.org/wiki/File:Empire-State-Building-NYC-May-2007.jpg
by Acediscovery
Image has been cut and color modified

tex_milky_way.png is based on
https://commons.wikimedia.org/wiki/File:ESO_-_Milky_Way.jpg
by ESO/S. Brunier
Image colors have been modified and there is self-crossfading

CC Attribution 2.0 https://creativecommons.org/licenses/by/2.0/ 
tex_battlecat_head.png tex_battlecat_leg1.png tex_battlecat_leg2.png tex_battlecat_torso.png tex_battlecat.png
are based on
https://commons.wikimedia.org/wiki/File:Half_a_jungle_cat_on_the_prowl_(52552723280).jpg
by Kandukuru Nagarjun
Image has been cut and color modified