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Gabriel covered a lot of great points. I would throw in a couple more. Just because you have cool software, don't dismiss the importance of actual design and composition. I always tell the younger people I've trained over the years (mostly After Effects), "when your animation stops, it still has to look great." Would also be helpful to be familiar with traditional photography techniques and lighting. Render engines like Corona, which is what I use, attempt to be as real-world as possible. Depending on what you create, make your scenes real-world scale. This will help to get predictable results. Most of those examples you posted are pretty abstract, minus the cool dynamics sneaker stuff. Like they were made for a screen behind a DJ or something. Not sure what the market is for that sort of thing. Start with simple scenes and work you way up. To get to that level of work for the sneaker video, I'm sure there's plenty of Xpresso work in there. YouTube is your friend. Lots of free learning there, plus all the paid learning too. Mograph+Effectors and all the Deformers give you an amazing tool-set to create all sorts of abstract things. Many are non-destructive. I would be careful not to overwhelm yourself with tons of plug-ins up front, otherwise you'll be good at a lot of things, but a master of none. Don't be afraid to post back with a more specific question. There are plenty of people here (some from MAXON) that can point you in the right direction. I've talked too much....