It's really cute so far - as others have said - if you have enough fabric to cut new setting triangles - I think that would be the better way to go.
If it's for a little one to be used - I think the quilt will survive better if it has at least 1/4 inch seam allowances.
If it's to be looked at only - then - maybe - you could get by with skimpy 1/8 inch seam allowances.