there could be a corroded connection, or a few bad cells
a few look light blue, maybe water damaged
a bad cell in a string of 11, pretty much kills that string
i count 33 cells, (3 strings per panel) if i'm correct those are 16.5v panels
one panel has fuzzy cells in all 3 strings
the other panel has 1 string with fuzzy cells
and 2 strings that are all clear dark blue
it might be only (2) full working cell strings in your setup
you need to do a meter check and see what they give the batteries when there is load on the batteries
turn on all the lights and see if the solar output goes up