If there is a panorama error here I wouldn't worry about it. The only contendors I can see are about three small vertical bright areas of reflection in the water and they may be exactly that, reflections.
It's a good subject for a panorama and your pine trees bookend the shot nicely.
The magpie. Apart from being black and white, it's nothing like an Australian magpie. Somewhere, there must be a story about the word "magpie" and how it has been used internationally for different birds. Your magpie looks like a passerine hopper while ours is a walker. I thought all covids were walkers but apparently not so I learnt something from your shot.
Raising the shadows would help the bright little eye and head details to stand out. But he's a fine looking fella.