First, I researched which ethnic groups live in St. Petersburg. Having found out this, I made a list where a folk musical instrument stood in front of each nationality. Then, I found image of each musical instrument and using photos as a reference I made 3d models in the Blender 3d program. Finished with the models I began to place them on the sheet lokking for the composition I needed. At the same time I found an ornaments for each nationality and made them in a vector in the Adobe Illustrator program. Also I converted the 3d models into a vector, giving them a more planar appearance. Finally, it remained for me to combine the composition, the models, the ornaments, the Tchaikovsky quote - and the poster was made :)