The design style is modern flat design. I make the entire vector that is simple. It means no stroke and less detail.
Beside that, in order to make the shape friendlier, I make most of vector by round shape.
Basing design style, I choose the typeface, which has curve. This typeface has consistency with the graphic elements.
This is link of my video: https://www.youtube.com/watch?v=ujT5JKc_KsU