What are some alternatives?
When comparing Illustration Gallery and Illustrations.design, 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.
Humaaans - Mix-&-match illustrations of humans with a design library.
Open Doodles - A collection of free sketchy illustrations
DrawKit - MIT licensed SVG illustrations, in 2 styles