1) Recycling compositions and scenes from the old webtoon I still like where appropriate.
2) Alluding more to Rick's backstory and purpose without outright revealing it, as I want to keep that a secret for now.
Also decided on a name for this one. The first idea for a name was "Curse of Quarrytown" in accordance with my love of pulpy weird tales stuff. Then, it was gonna be "Epitaph" after the Judas Priest song, as its lyrics and perfect segue into "Island of Domination" fit the themes of the tale. Eventually, I settled on calling it "Minotaurus" to give it more unity with the previous "Caduceus".
The plan is to make one last one-shot after this if possible. A trilogy of one-off stories that showcases the world and adventures of Barrel Shell before committing to making anything else with it. Caduceus exhibited the aquatic angle with Barrel using the turtlejet boots. This one has him using a different set of rollerboots for travel over the dusty ground and old railways of an abandoned mine. The last one planned takes place in a snowy environment and will have him using ski gear and bobsled-type shoes to hunt an abominable snowman. Each story kinda revolves around Barrel's "purpose" as a machine, alluding both to myth and classic robot stuff like Tetsujin and Mazinger Z. I'm aware it's very self-indulgent lol. Some might say it's kinda dumb sharing all this on a blog like five people at most will read, but I dunno. It's kinda cozy, tbh.
Had fun drawing these last few panels in particular.
Lucas and Spielberg considered them inspiration for a reason! They're very good and you should read them! NOW!!1!
I tend to gravitate to supernatural or religious subject matter. I find myths, fairy tales, and ghost stories interesting. Granted I also love sci-fi stuff like aliens and robots, so I like mashing those together. 
My extras tend to be more heavily caricatured than my main characters. This is less because I think the main characters should be boring like in a Disney movie and more because I like populating worlds with the kind of person you'd meet at a gas station or the dump. I find comics without regular dudes populating the world where everyone's beautiful very lame. What good is a world where everyone's special! Even Rick is meant to have this energy to some degree, in spite of being the "hero". He's still a dude with the same quirks and foibles. The same strengths and weaknesses, just with the weaknesses held back by disciplined habit and the strengths bolstered by the same. I find this true of "strong" or "brave" men in real life too. 
One unfortunate consequence is that acting all "brave" can sometimes make you look like a ham though. "Heroes" have a bad habit of this!
I much prefer this approach where I take things one story at a time instead of trying to make an ongoing serial.
I can take my time making it this way, and it also means not stressing over how every decision fits together on some grand narrative frame work. The Western influences and imagery are way more overt in this one too.