Here's a quick run at your data using PS. Here are my observations:
1) You have a fairly large amount of thermal noise that darks might help eliminate. I've smoothed it and darkened the background a bit lower than where I'd normal set it just to hide the noise. Dithering might help this a bit too.
2) You still have a fair amount of noise in the image so you really need more data. Adding another 5-10x subs would really help. (I know that might be a lot of time so you be the judge.)
3) The color needs a lot of work but as you can see that's manageable.
4) The bit depth of this stacked data doesn't appear to be very deep. That causes the histograms to break up with only a little bit of stretch. Be sure to accumulate the averaged data into a 32 bit floating array.
5) You are picking up quite a bit of detail. If you can get the s/n up another notch, you might be able to get a pretty detailed image.
This is a really good start and with a little bit more work, I think that you might be able to get some even better images out of this camera. Way to go!
The pictures I took last night look bad. It was a rough nigh, but I feel more confortable using NexRemote, I suppose that is a plus.
To the observations you made on the data
1) I need to read around on how to do Dithering, never done it before.
2) I think I can do that 5X to 10X. That would mean 5000 to 1000 seconds (that is about 1.5 to 3 hours) I would said try the 500 frames first and see where it takes me...But probably will have to wait until next week, tonight looks iffy in the visibility and the clouds are hanging around
3) What operation did you use in that one? Maybe I can replicate it with GIMP 2.9
4) I need to check my matlab code to make sure is doing the right thing when it converts to TIFF. Matlab uses doubles as default so it most be in the conversion to TIFFs.
5) I just hope this was not a one lucky shot, however, I was able to get some interesting (not pretty, but intering) of M51, so there is hope here.
If you wonder, I took this one during this spring.
M51_Capture 4_25_2014 2_33_00 _stack44_Eccen0.6_CropGimp_UCorr.jpg 123.73KB
It looks blurry, but I can see more details, than what I would see with my own eyes. I suppose there is some use for these cameras beyond planetary work
Thanks for looking at the data.