Just a reminder here—because most of us need reminding, now and again—to keep looking at everything around you. Noticing things others don’t notice is part of being an artist. You have to be able to convey a vision to the world, either an internal or a translated external one (come to think of it, inner visions have to be translated themselves).
In order to fully convey your vision to us, you need to have seen and absorbed what you’re putting down for others. You can’t do that unless you’re really good at seeing stuff.
It’ll seem too simple at first. Then, as you keep noticing and looking deeper and longer, you start to see that it’s almost infinitely complex, and you could get lost in the most mundane slice of your day. But don’t stop. The idea for your next thing comes from what you see and how much and how far you see into it.