What are some alternatives?
When comparing Illustration Gallery and Struct Illustrations, you can also consider the following products
Evie by unDraw - MIT licensed illustrations for your next project
Absurd Design - Free surrealist illustrations for landing pages. 💡
Handsome Illustrations - Create unique illustrations for websites & applications.
Illustrations.design - Unique, mix-and-match Illustrations to speed up or inspire your next project
DrawKit - MIT licensed SVG illustrations, in 2 styles
Open Doodles - A collection of free sketchy illustrations