Looks alright.

My friend has never used asorbic acid to extract before - I'd recommend saving all the filtered plant matter so that one could re-extract with vinegar or HCl if need be.

That sounds like too little lye as well so make sure you have enough in case you need to add some. Good luck measuring pH 14 with papers, my friend just takes it to black (which is about pH 12) and adds another 50% more lye solution.

Be careful adding cold glass to hot water. A better idea is to put the glass in  and them warm up the water bath.

Let us know how it goes and don't throw anything away.