What are some alternatives?
When comparing Retrowave Illustration Pack and SaaSFrame, you can also consider the following products
Stubborn Illustrations - 30 little exciting stories from the startup world
Oops Pages - Best error pages on the web.
Stories by Freepik - Awesome illustrations for your next project
Marketing Inspo - Get inspired by this collection of marketing examples.
Atlassian Design - Design, develop, and deliver
FourZeroFour - Showcase of the best error pages on the web.