This is a tricky thing to do: create a layout of seemingly random elements that look good together. I need to deal with this now for the new venture I am setting up
It is a process of constant iteration. Put one type of elements, put another. Add text and titles. They shift the weight of the page, so everything has to move around again, different screen aspect ratio, another shuffle. Repeat, repeat.
Subconsciously, your brain is scanning for anomalies in the unwritten rules of a layout. You don’t know what they are, but you see it when you break them. For example, including one angle in the path above that is “sharp” (i.e., smaller than 90 degrees, would stand out.
Architects have to deal with this a lot, or painters laying out the “random” elements of a still life painting.
In the end, we are all artists.