This is a very versatile pattern; you can change the squares to be bigger, just by adding stitches, and counting. (This is 4x5 stitch squares--you can also go up to 5x6/7 squares, 6x7/8 squares, etc, etc!)

The purple-white and orange/yellow washcloths shown (in the 4th photo) have bigger squares, while the orange-white and yellow washcloths shown (in the 3rd photos) have the 4x5 squares, as written in this pattern (but the orange-white washcloth is twice the size of the yellow one).