I disagree. I think that the blending of the three parts needs re-doing. The high harmony needs to back off. It's in tune (mostly), and barely acceptable..but I've heard worse. Sure, the timbre and tone of the high voice is questionable, but mix it all better, and I think it could work.
by the way SDiag...very funny comments...The kids are gone now, but the wife took over on the pecking part man.