Bulgaria space music expo logo design

I made this logo for an academic project. The aim was to create a brand identity for my country witch could stand out among other countries identities. The brand identity had to focus on the thing that made Bulgaria special and make the country pop out on a world expo. I chose the voice of Valya Balkanska witch took part of the Voyager Golden Record selection of music included in the two Voyager spacecraft launched in 1977. I believe this to be one of the greatest achievements of Bulgaria.