This artist, as usual, has gone through a few revisions.

• Set #1 - post #912432
• Other pictures in this set aren't on Danbooru
• Set #2 - post #961586, post #961588
• Shifted eyes down slightly.
• If the nude version seen in post #912432 was updated, it is not on Danbooru.
• Set #3 - post #1309221, post #1309225
• No more nude version available on Pixiv
• Picture has been flipped horizontally
• I don't know why. Homura's soul gem is supposed to be on her left hand, so flipping the picture makes that incorrect.
• Head tilted downward
• Different facial expression. Now has a slight frown instead of parted lips. Eyes are more narrowed.
• Homura's head and upper body have more defined and deeper shadows.
• Added a proper navel