Aerial twilight photography is very challenging from a technical perspective. Because of the challanges involved you might see a bit of extra graininess in your Aerial Twilight images. Here is a technical explaination as to why that is.
For regular twilight photography we can avoid grainy shots by using a tripod to obtain long exposure images. It's not possible to use a tripod with a drone as you are hovering in the air which introduces motion and means you need to use a faster shutter speed. To get a sharp shot we need to increase the sensitivity of the drone's sensor to capture enough light and avoid motion blur. However, this increased sensitivity unfortunately means there is increased noise from sensor amplification.