Time for another sketch! There have been similar sketches to this one, both here and at other sketch sites, but there's a reason! It's a classic. The rule of threes is always a good rule to fall to!
After my very grey card last week, I figured it was time for a little sun! I know lining up squares can be a problem for some, so I've included the measurements. The squares are each 1.25 inches, the panel they sit on is 4.25x1.5. Hope that helps!