To me the pinball " community" should welcome what looks like an improvement on a mod that has undergone a few iterations from the original mod . It looks quite a bit different from the " add flame" mod. The lighting effects look great!
To me the word community conjures up more the concept of people sharing a common interest and sharing of ideas and welcoming innovation . Selling a mod for profit is business not really community as it has been used in this thread .If you feel stongly about others copying or improving on your original ideas , then incorporate patent protection into your products . Good luck getting a patent for the witch well design if anything the only potentially patentable design is the orginal jp ( " witch in tube that rises from pinball playfield") .Realistically no one is going to go to the time and expense of this otherwise come up with something so unigue no one else can make and the market and money is all yours! Otherwise do it the pinside way and have people discredit the new guy. Whatever the " mod community norms" it seems like the goal is to benefit the mod business rather than the pinball community as a whole.
I think harry might be a little lacking in the social skills but has some expertise in 3d printing and electronics and as well production capabilities to meet demand which looks promising for present and future great pinball mods .
a quick search of goggle shows a quite a few designs of the witch with flames in the background predating the " flame" mod .