Here is the exact sponge texture roller I used in the video!
Amazon Affiliate Link - https://amzn.to/3QTL8CF
And here is another, fancier roller I would also recommend!
Amazon Affiliate Link - https://amzn.to/3SVVSDs

Here is the song I used    • Reign of the Septims  

To learn more about structural brick vaulting, research the man, Raphael Guastavino