Rate my first loaf

Hello!
Please rate my bread, I started learning about sourdough a week ago, I got sourdough from a local grandmother, my method was as follows:
I feed sourdough starter and it doubled in size in about 4 hours, I autolyzed the dough for half an hour, the flour was a white bread flour, then I mixed the flour, salt, leaven. I used 900gram flour, 2 loaves. After fattening, 3 folds followed, 2 half-hour rests, the last one an hour and a half. 12 hours of refrigerated rising, then baking in an iron pan with lid for 30 minutes at 250°C, then 20 minutes at 220°C for 20 minutes