Yes this would make a beautiful border. I would assemble like seminole piecing. I would make one strip unit consisting of 1 1/2" strips of cream, brown, black, brown then cream again. Once all assembled I would cut this stip set into 1 1/2" units. The other strip set would be more complicated because you need to piece all those little brown squares in a black square that would measure 1 1/2" square unfinished, easier if you PP or just increase the sizes but for the sake of explaining lets keep it at 1 1/2". Then to those you would need to attach a stip of cream to either side 1 1/2" x 2 1/2" wide or 3" to be safe. Assemble the two units by lining up to your square in a square. Once you have your border done, lop off the pointy bits.