Here's a sampling of some of the levels I've designed for the various projects I've been involved with, as well as various level design contests over the years. I have a strong passion for levels with a specific flow, with distinct obstacles, memorable gimmicks, and a good amount of challenge above all else.
I upload most of the levels I design to my YouTube channel, both for casual nonserious projects and the passion projects I've dedicated years of my life to. If you'd like further samples, I'd advise browsing here.