yeah I'd change it up, I'm not a big fan of arches. Maybe try a two island design with one larger than the other. I usually find a pic of a scape I like and start off trying to copy it, then change the design on the fly.
It IS what you are happiest with, but your asking opinions. I like arches, but too many is too many. I go with the 2 island idea. My thought would be to slide archway on left to the left. Move that single rock to the right and stack those straight up for a pillar effect.
Obviously, you don't have to copy mine, I am only posting as example of concept.
![]()
Sent from my Nexus 6 using Tapatalk