Burano is linked by a bridge to the island of Mazzorbo and from my observations, the production crew included elements of Mazzorbo into episode 7 as well as Burano. An example is the below picture this scene is unique to Mazzorbo and not found in Burano.
Although I have no suitable picture,
Most houses in Burano are in good condition, exterior wise because of the colourful pastels. A lot of buildings in Venice are in a state of semi-disrepair with the old, faded pastels falling away revealing the brickwork below, but not in Burano!
When it comes to laces, there are a countless number of shops selling lace merchandise. Even in a relatively isolated place like Burano, it still gets plenty of tourists. The below picture shows the intricate details which the ARIA crew paid attention to, from the poles sticking out of the water to the cloth covering the doorways.
Stuff on sale can range from simple handkerchiefs from €1 to more elaborate designs, with ARIA giving a taste of what is on offer.
Unfortunately though, the art of lace-making is a dying breed. Lace-making began from as far back as the 14th Century with the Doge's wife (I think the Doge was mentioned somewhere in ARIA). Although Napoleon's invasion halted the lace-making for a while, it was ressurected with a lace-making school opening in 1872. It has since then closed in 1970 and the number of women still practicing lace-making is dwindling fast (Simonis 2008, p166).
Simonis, D. (2008), Venice & The Veneto: City Guide, Lonely Planet Publications: London