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Looks like the parking brake strut (#6 in drawing above), located below the wheel cylinder isn't seated properly on the front shoe.SOMETHING is preventing the shoes from touching the anchor pin at the top.
+1 vote for this based on a rusty memory.I suspect the spring that is too long in the photo...goes on the front shoe
Draw back here is the rear brakes never worked from get go as previous owner cut the lines to save money and messed up the springs , hence even when i kept one side assembled there was no way i could have reassembled itProbably the take-away lesson for OP or any other readers is to disassemble and reassemble only one side at a time(!). Thus, when in doubt during reassembly, simply look to the opposite side for guidance.
Also, check the starwheel adjusters for ease of operation. Once removed (e.g., during brake disassembly) they should rotate freely and easily. If not, disassemble them, clean, lubricate and reassemble, or replace with new.