Gluten Free Sourdough Challenge - Day 3 and 4

Initially, it looked like nothing much was happening beneath the tea towl. It smelt slightly more yeasty, but there didn't appear to be much visible difference in how my gluten free sourdough looked. Until I looked at the pictures of the past 3 days...

Day 1

Day 2

Day 3

Day 4

As you can see, it has developed from a white grainy paste, to a slightly yellow, moussey mound that has developed some bubbles and a rather acidic aroma. I often get wafts of yeasty smells as I am working at my desk through the tea towl. Nearly the weekend...what shall I have on my toast?