I dont look at the cards the same way as you do obviously. Even the badges tat we put in our profiles/every post we make here; i think are just too compact n cropped to rlly be perfect in my view. I prefer the signatures/gifs n pfps for an expression of how much i like the idol/artist being portrayed. Cards/Badges unless some day there's a gif card are just too abstract for me to comment much on their aesthetics, same for badges. Also there's hundreds of cards/badges tat staff/users worked hard on tat i dont want to say much to crap on their efforts(i know how much effort i put into my badge attempts/pfps/sigs, so if i extrapolate tat to the 100s/1000? of cards/badges...) its more the limitations of badges/cards tat i cant see past it. I love the cards tat i crave, but its both the idol/artist combined with the association i hv of them with the cards. Not just the picture/design of the idol/artist/card.
Edit: like in ur posted picture, i cant tell who the last person is? Except i know wat Solar, Moonbyul n Hwasa look like, so by process of elimination: its a picture of Wheein. A lot of the cards are like tat for me; idk who the unfamiliar idols to me are, but i collect/trade for based on association/impression. Not on the picture of the idol. Also no bg/male idol card has any association/impression on me such tat im interested in keeping/collecting em. If non k-idol male's cards such as Paul Kim, Juckjae, Dickpunks/Hyunwoo, or NELL were released; tat would change the game for me n id collect 'em.