Welcome to the forum. And congratulations.... thats from your mobile device right? Have you tried MS ICE for your panos yet on the images on your SD card?
MS Ice is used to stitch the separate pics together
So once you have ICE installed, open the folder where the multiple pics are, and select all, then import, accept the defaults and you'll have a hi-res pano in no time... they typically add up to 28Mb on my system, then use a photo editor to tweak and reduce the overall size. For example, if you were going to post over that the DJI forum, they have to be less than 2Mb... not sure what the limit here is.Thank You