Stitching a scene with a rippled sea surface isn't an easy task.
Yup, been there, done that and then been forced to reluctantly delete what could have been a winning pano - however, I am not sure and I haven't even tried it yet, but I do believe if you have a camera with the availability of a rolling shutter/digital shutter (Sony for instance) and you have the continuous pan/stitch functionality of say an iPhone (not the Sony for instance), then you can easily get around this problem I think, but then all the waves will curl towards the direction you have panned, but probably a lot better than a fail.
Anyway, nice seascape sunset and beautiful colours

Dave