So here is the final implementation of the sketch from yesterday. I am very relieved that this exercise did actually take less time as I expected in the beginning of the progress. I had much fun creating the shapes for this plane since there was no struggling with surprising problems this time. First I wanted to add more details like hatches, tiny sensors, rivets, lights and so on, but then I decided to keep it simple. In my opinion, more details would already have destroyed the abstract look of the aircraft, but without improving the aesthetic.
Left: The version of the plane after all shapes were created successfully. Right: The finalisation after adding colors, lightning and shades