Hey, been out of it as well. I kinda shifted focus to music instead of writing. But I've been thinking of doing something short to keep being creative outside of it, but man.. Everything I write always seems to expand into something bigger if I'm not careful lol
My general advice for a short comic, outline first and start with the bare minimum of a story. If it's good as that alone, well- I mean, that's just it: it's good as that alone. Be cautious of trying to add more than that.. It's easy to catch yourself in an ongoing loop of adding more and more to improve on the concept.