Absolutely. If there was a set of tiers that had NSFW drawn comics and absolutely zero mention of any risqué photos, I’d subscribe again. “Character Cosplays” is in every tier and really shouldn’t be. (And should really be clearer that this includes like hand-bra photos and such. “Note: contains sexually suggestive photos of the artist” or something.)
No worries. You did the right thing looking for details, and when my complaint was about sexual images, it’s reasonable to see the clearly sexual descriptions in the higher tiers and assume that was it.