I like the second option much better. (The first one seems too busy to me.)
The corners are rather different than the rest of the quilt. Personally, I feel like the lack of any dark fabric makes them seem a bit disjointed from the rest of the quilt. One option is to replace the corner blocks with more of the border blocks, which I did via Paint. (I expect that it would be disappointing to not use the lovely corner blocks, but maybe they can go into another project? I think they would be lovely as throw pillows.)