If you did a quick wash with -20 ethanol, you should NOT have ended up with “green dragon”.
If you add some dry ice to your recipe, and extract at -40C or -70C you can make a better tasting product.
The colder & faster you perform your extraction, the better your extract will taste, but most dont taste “good” as raw extracts (I’ve run into a couple of exceptions out of hundreds).
Then there is potency. It’s easy to make a good tasting 5mg gummy. It’s very difficult to make a good tasting 500mg gummy. Distillate will get you a decent 100mg, possibly better, assuming it was well made.
Have you seen TheLostBiologist Bucket and Post Processing Tek for Golden Extract ?