Nice pictures, I hope to add to your post tomorrow if I can make it on the water!
The scans are looking good, but I do have some advice for you, if you're interested. For SideScan, you should turn your sensativity down a bit. The sidescan shows a lot of white there, it should be more brown (or blue if you use that pallete) than white - you'll get better detail than all being washed out in white. Also, there is some weird issues at 0-5 feet - (interference maybe)? (Edit: I just saw on the sidescan that the left side has the interference. Maybe check the Split Fire settings? Split Fire clear is reccomended for water <20ft.
Here is some sesativity adjustments for the sonar that might help you see the fish better. Generally my sonar shows much more than down imaging, but in the pictures above, they look about the same? I think I see more fish in one picture, but the arches aren't complete. Try this thread linked below if you have these scans recorded on the unit, you can play with the settings and see what the differences are...
https://www.bbcboards.net/zerothread?id=668758
It all looks fishy!!!