This summer nail look is really colorful and bright and kind of reminds me of a mosaic. Here's what I used to achieve this look:
Step 1: Paint nails a light grey so that they are completely opaque. Let them dry completely.
Step 2: With a nail art brush and black polish, paint 3 vertical lines on each nail, evenly spaced.
Step 3: With the same polish and brush, draw diagonal lines in the spaces between the vertical lines. Alternate directions of the diagonals in spaces that are adjacent.
Step 4: Using the bright accent colors (purple, blue, & yellow), randomly fill in the shapes. Leave some shapes the grey color.
Step 5: If you need to, go over the black lines again to make them more defined.
Step 6: When nails are completely dry, apply your favorite top coat.