This is a hidden gem for the "ktina free" seeker. Older illustrations (pre-1925) are out of copyright. You can download etchings and woodcuts that have the same organic feel as modern vector art.
If you love the Ktina aesthetic but need assets that are truly free to use (even commercially, with attribution), here are the top five places to look: ktina free
While a full Premium subscription is paid, users often search for "ktina free" to find these specific opportunities: This is a hidden gem for the "ktina free" seeker