iremcnar/eyeTutorial ? reverse-engineered prompt

Build me a Python app that shows a full screen ASCII animation of a single eye coming to life, opening, blinking, looking around a bit, then zooming through the pupil into space. I want the eye to be made from text characters only, with things like the iris, eyelids, eyelashes, catchlights, and a few subtle veins or eyebrow details, not images.

After the zoom, it should turn into a starfield with lots of twinkling stars flying toward the viewer, a few shooting stars and a slow comet, and then end in a glowing nebula that softly changes into a heart shape. Use a simple windowed interface so I can run it on my computer, and let me restart it with R and quit with Esc. If possible, make it draw efficiently by only updating the parts of the screen that change. Keep it self contained and easy to run with Python and NumPy, and if you need to check current docs for anything, feel free to look them up online.