What is the Streamity?
Streamity is the first decentralized platform for the exchange of confidential data for cryptocurrency currencies that allows users to trade without intermediaries and guarantee a strong security agreement thanks to intelligent contract architecture with payment system APIs.
This platform is great and there will be a lot of people who trust and they will be able to make purchases and sales without worrying about losing money.
The first stage
The second stage
Third phase
The fourth stage
The final stage
This new design I use sketchtup, to follow the contest organized by 
streamitygraphic2018