Loch Leven by Alan_Whyte

View across loch leven, stitching is good but still not blending well and a vast colour difference from the right to the left, think I will have to vingette correct all images in lightroom before stitching.
I was sure when I sent this that I had touched in the sky and the left edge before i flattened in photoshop but seems to have come out with these not repaired.

This was shot at the same exposure and f stop over the whole scene and was set to daylight for colour balance but still the image looks crap.