I made my first sourdough recently too. It wasn’t as fluffy as yours but it still tasted great. I was watching a lot of bread/sourdough stuff on YouTube during my holiday, so I decided to make my own starter and a bread. Wasn’t easy without a scale, but still ended up with something edible.
Also made 4 “buns” from the sourdough starter
Thanks, my airbnb didn’t have anything to measure, so it did it completely by eye and feeling. Just got home yesterday and brought my starter with me, so definitely going to try again with better tools.