I actually like this. It has a shabby chic look. Just keep your two sides with good contrast and I think it will finish great.
It is hard to keep going when you think the project is failing. If we all stopped at that point in our lives we would not have most of the beautiful art we have in the world.
You will work your way through it and either put it aside and do something more to your liking or find a way to make it work.
IMHO, all my favorite quilts are the ones I didn't give up on.
peace