The 'flyingSnake_ouput.dat' file is located in the parent folder. It should contain the time-averaged coefficients of the 4 cases with a mesh size around 450K cells. It contains also the accumulated runtime of the 4 cases.
In every case folder, there is a 'postProcessing' sub-folder that contains all the '.png' files that Veronica is asking.
For the largest case (994K cells), the plots can be found in the 'postProcessing' sub-folder and the 'forceCoeffs.dat' in 'postProcessing/forceCoeffs/0/.'. The runtime should be written in the log file.
If you managed to run the 4 'small' cases and were able to run the Python script, you should get two png file of the time-averaged lift coefficient and time-averaged drag coefficient versus the angle of attack.
Open those files, and see what the flying snake is capable of!
Olivier