It could be hooked up correct, but I always use a coupler/cable, and my meter to make sure, especially if its a jack I’m not familiar with. Plus it’ll give you an opportunity to get familiar with your meter which is essential.
You can use a guitar cable too. Plug it into one of the jacks and do continuity test on other end of cable. Base of plug (to jack lug) will be ground, and tip (to jack lug) will be signal.
Are you sure those yellow in/out wires are going to the correct lug on those jacks? I’m not familiar with those jacks cuz I don't use them, but they may need to go to the other lug. If you have a 1/4” pedal coupler you can plug it into the jack and do a continuity test to verify the lugs.
Also...
Hello, building the General Tso and wanted to make sure that the 2 LDR’s arent polarized before I install them. They are the Tayda version 5mm LDRs.
Much appreciated!