I thought this set looked like black lotus and taro had a baby. At least I wasn't completely off.
https://imgur.com/a/TzJiMvv (album)
It seems at the very least extraordinarily rude to do this, assuming you still haven't talked to the original gb runner. I myself am not sure if its truly wrong to take someones idea and tweak it, but it seems at least rude considering it was going to gb after all, and you clearly knew this. In my mind, it is one thing to have slightly similar colors but a different thing to base your set on someone else's, esp on that is currently in the works.
I honestly haven't been around in this community to really know what is considered right and wrong here, but this rubs me the wrong way. If you did talk to the Black Lotus GB runner and he gave you his blessing, please disregard everything. And again, I'm not sure how I feel entirely, or how much it matters, but the fact that I'm at all unsure I figured meant I should share and ask for clarification or answers.
edit: I've had some people trying to hunt me down, this isnt meant to be an alt, I just got locked out of my account due to password issues. I'm gasp