This is a very vibrant piece, very subtle colour blending, and just the right amount of silica gel to really show off the square textured background. The grid marks in the texture were made by using a portion of a ceiling light cover that has a 1/2" grid pattern. The double circles are the plastic ring at the end of your roll of scotch tape, while the smaller circles are a variety of bottle lids or the plastic roll at the end of your calculator tape. It's "berry blue" because I quite like alliteration. Thanks for looking.