I only see the faintest of blending error in the top on the right, hardly noticeable.

Really, there is a slight misblending the entire length of the borders. Harder to see on the Jpg version, and not too detracting or distracting, but still, it is there... Maybe Tamago's the one who needs to raise his brightness?

I'm not sure what happened in the upper corner with the red beam, but yeah, the blend was hard one of the hardest I've encountered. More practice!