there are a lot of tiny blocks---------but there are plenty of big ones, too.
You could always modify the quilt some------the third border in could be made as simple strips, as could the brown/yellow border just inside that. And using a piece of graph paper, you might be able to enlarge the diamonds in the pink/red/l.blue/med. blue/2 purples and green section without losing the feel of the design.
If you take a notion to try to graph it on paper, visually mark off one 1/4 of it, one of the big corners-------because each quarter section is the same, although you'd have to match colors from one quarter section to another.