Looking through more old Iwane May art, this one pic related is from 2018:
https://twitter.com/animator1965/status/1000001941961785344It has 827 retweets and 3,200+ likes
Then the recent one from last week:
https://twitter.com/animator1965/status/1276135759842402305Pretty much topped out at 984 retweets and 4,400 likes.
Iwane of course draws art of virtually every character in the anime and all the main girls get tons of art, but I notice his art of May tends to get the most likes/retweets regularly. Keep in mind most people on twitter are more mainstream and casual than someplace like here and more Japanese fans, so I'm surprised May still gets so much "likes" 15 years later.