But actually, that's the point. You should plant what you like. If you like plastic swan pots, then go for it. This is the yard of an older couple in my neighbourhood, and while the garden style is certainly not trendy, they seem happy with it.
It's actually kind of cute - the pots move around occasionally. Sometimes they're lined up tip-to-tail beside the driveway, sometimes they're swimming in a circle on the lawn. Not my style, but cute.
Anyway, my point is, as a garden coach, I listen to what you like and not only help you accomplish it in your garden, but also maintain or improve it. This is different from a landscape designer who will come up with a complete design and/or install it for you, but then you may have no idea how to take care of it, or be afraid to change something in a year or two. Whether or not you spend big bucks on a professionally installed landscape, you still need to know a thing or two to keep it looking good year after year.