Really glad to hear that the score inspired you to go make some stuff on your own. I suppose there are probably lots of specific and practical little tips, but how about a broad one? I’ve found it helpful (as with many kinds of writing) to write from my gut and test it against a certain scene. If it makes me feel something, chances are it will make others feel something as well, but the important thing is that when you’re feeling something, you’re inspired to keep following that thread. And of course, that is an important key to making any type of art: the persistence to keep following a thread until you really see what it can become!