The ending: After four shorts, the Animator and the Stick figure finally make peace, and begin working on animations together. The figure even teaches him new techniques and helps him improve.
The fighting stick figures waving at the Second Coming when the Animator refreshes them.
Seeing the Second Coming play and have fun with his new friends and not blowing up the computer is just adorable.
Animation Vs. Minecraft
After every episode prior has had the main stick figure start off on sour terms from the word go, seeing this episode start with the Second Coming happily skipping across the monitor is refreshingly adorable.
A bit of Fridge Heartwarming in the fact that the Animator doesn't show up at all, but has left his computer up and running for the stick figures to romp around in. Compare this level of trust with him deleting them on sight in 4.