2 top images are same attempt - with and without auto-slant
Something screwed up. Probably with the audio recording, perhaps it dropped a few samples so QSSTV desynchronized there.
Boring setup:
V-Dipole, RTL-SDR v3, waterproof smartphone (it was snowing, else I’d bring a laptop)
If you have a cheapo handheld radio and a phone you can get them, doesn’t take very special equipment.
Does take a lot of luck though.