If you do not want the colours to mix, be sure to wait for the first layer to dry before applying another colour over it or up against it.
Water Make-up works just like watercolour paint. When working with Water Make-up preferably use separate brushes for light and dark colours. If you do not want the colours to mix, be sure to wait for the first layer to dry before applying another colour over it or up against it.
To make the eyes appear slanted, you proceed as follows: Draw with a fine brush to draw a black line along the upper edge of the eyelashes. Then extend that line diagonally upwards from the outer corner of the eye. Then extend it the other way, from the inner corner of the eye downwards. Let the line run back towards the corner of the eye, ending at the beginning of the lower eyelash edge.
When working with Water Make-up preferably use separate brushes for light and dark colours. If you do not want the colours to mix, be sure to wait for the first layer to dry before applying another colour over it or up against it.
Hint: Regularly change the water you rinse your brushes in and preferably work with two water bowls: one for light and one for dark shades.