Element: line. Line is used to make the lettering in the centre to seem more warped and unnatural which draws more attention to it. Using different lines like straight and curved goes against each other to add difference and interest without over complicating or making it difficult to look at
Element: shape. Shape is shown in the circles which are cut off by a serious of rectangular shapes, the numbers are also in a blockier font adding to the element. Having shape adds interest and a polished cut clean look with nothing over complicating it.
Principle: contrast. The use of contrast shows how this company has two different yet similar things by reversing colours, using symmetry as well makes this design eye catching and appealing to the eye
Element: Colour. Colour is used to match the name of the event with bright poppy colours, a large range of colours gives a lot of Impact but the milder tones around the text make sure it isn't too busy, the mood is fun and lively.