I've discovered I'm pretty good with living things, but a terrible landscaper. Mostly I've given up. I can see in my head what I want, but can't figure out how to do that in real life.
My wife mostly built this pond to my specifications, with a bit of labor from my kids and I. It's set into a hill, which is why it's built up on the side. She likes the brick look and I like the natural look, but she knows what she's doing, so I have no trouble letting her get out the laser level and run the plumb lines. We joke that we're all backward from the stereotypes as a couple, since she's the handywoman (most of the power tools are hers) and I'm the gardener and cook.
The water is mostly kept at the very top (it's quite low at the moment) and the liner is trimmed to the shape of the bricks so as not to show from the outside. The liner top is level to 1/16th inch in all directions(!) and when overfilled flows evenly out between the bricks in all directions. I want to put plants around it, but she wants to put a new path alongside it, and we're reworking the filtration plumbing, so I've had to wait. I think there's pictures of construction, or at least of the first filling of it, somewhere on this forum.