Redbubble doesn’t care how you come up with your jpgs or pngs. They just care that they’re jpgs or pngs. Sometimes I feel like I’m not a real illustrator, because I can’t afford a lot of the fancy tools illustrators are supposed to need, but that’s all bosh.
You make cool stuff using the tools you have. And there’s composition, design and great gags to your images. 👍