Refus photo, problèmr qualité

Generally, I think that you should avoid HDR for stock photography, as that introduces artefacts that are difficult to correct.

Then, if your camera allows for that, do raw photography.

You will need to bring down exposure in those light areas, where houses have white fronts and are in full sunlight, as those areas tend to overexpose.

You will need to minimize the noise.

And you will have to check for chromatic aberration.

However, if your initial image is not sharp, you can work as hard as you want, you will never get an acceptable asset.

It's just too blurry, which you won't be able to fix. I suppose you'll have to experiment with the drone to determine whether the blur is due to camera motion, or whether the small sensor camera is just not capable of producing high quality sharp images.