Many are afraid of mixing different prints, but also realize that one of the main rules of this season is the ability to mix different patterns. But the danger is not to be fashionable, but to look like a clown. The print should not put a shadow to its carrier. The easiest option is to start with a striped print.
Choose a strip instead of a monotone shirt. And wear that striped shirt instead of a monotone, but for example, with a fancy shorts or skirt.
The striped print can also be combined with the checkered one. It is important that the prints be of different sizes. It would be good to repeat the same color in different prints.