Those are quite cool! I'm all about the looseness now when sketching honestly. As you said ideas flow better with looseness and for me they're always a treat to see, I feel they are way more expressive than a final refined piece. I think loose quasi-abstract sketches (where the artist just expressed something with a few lines or shades instead of rendering and making it super obvious) let so much to the viewer's imagination and that is key for a fun experience. I have not made an illustration in quite some time, but my goal is to make digital paintings that look loose and sketchy but also like "final" piece.

Keep it up! They ARE inspiring.