Love your garden David. Nothing is too busy as long as you enjoy it. I could spend hours exploring all the unique areas and walking down those paths. I enjoy seeing so many plants that I can't grow in my zone.
My idea of landscape planning is to buy a plant, walk around the garden until I find a bare spot with the right amount of sunshine and plant it there. A few years later, I may decide it would look better somewhere else, so it gets moved. Works for me.
My style seems to be "Flower Floozy". I like lots of blooms and want something new to be in bloom each day. I also enjoy very modern, stark, minimal gardens and many other styles, but mine is the type that gives me the most pleasure. I overheard a neighbor behind me talking one day and he said if he lived in my house, he'd dig up all the flowers and have a nice lawn. I had to laugh, because when I walk by his house I daydream about where I'd put the flower beds in his yard if I lived there.