technique is just a learned thing. you do it over and over, then one day you will "get it" and then it will be easy to do. it is not hard to do, it just takes focus.
the problem is that it is so easy to do, that people will instead of imagining up new ideas, "borrow" something that's already been done.
i think technique can become a confidence trap, when person get stuck on the technique only rather than the heart, they don't produce anything new and interesting.
you said your technique was dependent on the subject, and that you paint what you imagine. i think that is the way it should be ~! you can only paint what you know, and the more you understand something the more honestly you can paint it. a truthful story is easier to write than a lie. and i think this kind of art/self-expression is very concerned with sincerity, more than peculiarity.
my artist friend always says in art you must "keep adding", and that art has a lot to do with adjusting a picture until it looks decent. i feel if the goal is towards beauty or being interesting, then that is okay to do.
but if you are sincere, that is a different story. i think both ways are fun. it's fun to be yourself but it can be fun to pretend to be something else - or even many things at once! a pretentious artist is never regarded well, but i think they are innocent and just wanna have fun. still, i feel the most honest artist is the most interesting.
i am a huge fan of your method: the brute force method - aka originality and genuineness. i really admire people who are cunning and lucky enough to not fall into traps. may i have your autograph?