Would it be weird to get this sticker?

So I came across this sticker of Marin Kitagawa (from My Dress-Up Darling). The art makes her look way more mature/adult compared to how she’s drawn in the anime/manga.
Canonically, Marin is supposed to be around 15/16, which is where I get stuck (because the fan art looks nothing like a high schooler, it looks like a grown woman in her 20s.)
I like the sticker and I’d want to put it on my personal water bottle or maybe my PC, but I keep overthinking it:
Is it weird if I buy it knowing the canon age?
Do people usually just headcanon/assume aged-up versions for art like this?
Would you personally find it off, or is it normal in the anime/waifu community?
I don’t want to cross any lines, but I also feel like the art is clearly drawn as an adult version, even if it’s not labeled “aged-up.”
What do you all think?
Other Random Uploaded Content
- 
		 4252 votes
Momo from My Hero Academia by Aery Tiefling [OC]
 - 
		 4582 votes
she is always horny and playful. I can’t handle her
 - 
		 5924 votes
Pomni cosplay by Neyrodesu
 - 
		 2749 votes
Asuka Langley from Evangelion by AGflower
 - 
		 4023 votes
Esil Radiru [Solo Leveling] (by Tulpina)
 - 
		 969 votes
Marceline by gigii517
 - 
		 3177 votes
Esdeath from Akame ga kill by Kate.Key Cosplay
 - 
		 5971 votes
Tatsumaki by Tanuki_tyan
 - 
		 1066 votes
My Alice attempt :3
 - 
		 6144 votes
Hinata Hyuga Cosplay Girl having fun her pussy on the bed
 - 
		 1295 votes
Practicing some kicks with my Frieren cosplay (doujinempress)
 - 
		 6824 votes
Albedo needs you to satisfy her LUST [Overlord] (Laura Pyon)