There are so few original ideas, everything evolves from something else. There are fads and phases - do you dip, do you dry brush, do you use three tones? None of these are original ideas from the miniatures world. They’ve all been copied, borrowed or modified from somewhere else.
If you like something, then copy it or draw on its ideas. This is not exclusive to us, everything from art to science is like this. Relax and do what works for you. Oh, and if you do think you’ve come up with something totally original.....I hate to burst your bubble, odds are you are not the first.