AYes. It looks like it's sugar veil. Probably free handed. I'm thinking they probably sketched out their design first and then made that and let it dry.
Sugar veil is quite pricey as well are the mats. I have been putting off purchasing in hopes for a cheaper alternative. Global Sugar Art just put out a new product similar to SV that is called Sugar Dress. It costs less and the mats are cheaper too. There is a YouTube video on how to use it on the Global Sugar Art channel.
that cake was done by The Cake Girls, if that helps you find more info on it :)
Thanks for that, i will try to email them and see if they can help.