Card fact: This is one of five players with the last name May to be featured in this set. The others are Carlos May, Dave May, Milt May and Rudy May. Considering that baseball-reference.com says only 12 people with the last name of May have ever played major league baseball, that's a pretty good concentration right here in the '75 set.
What I thought about this card then: Didn't see it. I grew up thinking May was always an Oriole.
What I think about this card now: I really like the Astros' early 1970s uniforms. I think it's because the first Astros uniforms I knew were those warm-colored rainbow monstrosities that debuted in 1976. After seeing those for over a decade, anything else looks good in comparison. And these look a lot better than some of the recent Astros uniforms which are duller than HGTV.
Other stuff: This is the first card featuring the light blue-green combo. We still have several other color combos that we haven't come across yet.
(EDIT: Lee May died at age 74 on July 29, 2017)
Back facts: May had some awesome slugging numbers during the late '60s/early '70s. Another one of those guys who peaked right before I started paying attention to baseball.
Other blog stuff: The pink-and-yellow color combo reminds me of Easter colors. That's the early front-runner for the design name. But I'm not married to it.
One-card wonders: Update 6
1 hour ago