If I were closer we could have a frogging party...rippit, rippit, rippit. I spent some time studying the blocks. If you look at the 4th row over the blocks make a saw tooth type design with the dark part of the blocks going vertically. If you have enough you could arrange them around a solid piece of brown or a brown print to form a square or rectangular design as a focal point in the center (or wherever you want it) and maybe do the same with the lighter colored blocks to fill in around the eye catcher area. Could even border around the areas with the brown to separate it like square outlines in 3 sizes. (Makes sense to me...maybe not saying it right) The brown accent would make it look 3 dimensional. Hopefully not too confusing to decipher what I'm trying to say.