How do you discover your signature? I have found, the short of it is that you create, and create and create. You practice, and you practice and you practice. The more you create, the more you will discover exactly what your signature truly is.
You signature is not just what you're naturally inclined to create, it's what you naturally enjoy creating. You may be excellent at something but you don't enjoy doing it. This is significant.
Don't fight it with righteous indignation. When you start to hear people tell you what they are reminded of when experiencing your art, don't fight it. Let's say someone calls your music "video-gamey" and you think, I hate that. Don't stop writing songs in the same style, maybe use different sounds. Maybe try different synths and drum packs. Maybe use a different camera, or different editing software, or work with different actors. Branch out, but don't beat yourself up about your creative course. You have a unique approach, so try not to get discouraged when you are falling short of the style you hope to achieve.
Don't take short cuts. One defining quality of my signature is "professional". I get this a lot. People say, your work is always very professional. Reason being is that I naturally slave over my work with a severe attention to detail. I do not let little things fall to the waist-side. I care about every single detail. I notice them and spend time considering the variations of possibilities. This is fun for me. This is part of my creative interests and therefore part of my signature. I am the opposite of sloppy. This all adds up to a feeling people get when they watch my work, but it also makes me slow. Slower than most.
It took me a long time to make each of my short films and songs. I spend thousands of hours fine tuning and tweaking, planning and preparing, visiting and revisiting. A lot of my friends told me to "just grab a camera and do it". They thought, Jordan is too much of a perfectionist and it gets in the way of the quantity of work he creates. While this may be true, quality is far more important to me than quantity. I would rather make 1 movie to the best of my abilities, than 10 movies very quickly.
However, I have learned that speed is a very good thing for me. It's pressure and pressure brings out the best in me. So I had to take this advice to heart without compromising one of the important strengths of my work. I had to learn how to embrace the speed, without disregarding the details. We need to listen to people but need not throw out the baby with the bath water.
This is why I am so gung-ho about automation and streamlining. This criticism forced me to consider it very seriously. If you are a progressive, patriarchal hating millennial you are likely turned off by this principle, as it is so closely enshrined in the capitalistic approach, but I challenge that outright. When you figure out how to streamline the mechanics of your craft you give yourself more time to concentrate on things that only you can do..be creative.
Unlike most, I have chosen to separate my work and my pleasure. This may be folly, it may be smart, but either way it satisfies my need to earn money and also create without impediment. With one hand I embrace the deadline and do what needs to be done to serve the client, and with the other hand I take my time. The significant point to be made is that I streamline both. I have yet to implement streamlining into my personal art, as much as I have done so within my professional art (possibly because there is less demand/pressure to do so) but never-the-less it is the principle that has changed my life for the better.
You want to find your signature? Then create over and over and it will become apparent. You want to earn money creating? Then streamline the mechanics of your work to allow more room for creativity. Best of luck.