1. There is not much point in uploading an image in a resolution of 8500x4909 and a file size of 32.3MB(!), especially if it's not perfectly sharp. You may try out some sharpening tools in the future (for example the "unmask sharp" filter in Photoshop). After using such a tool, a high resolution upload would make much more sense.
2. Watch out for stitching errors in your future panorams!