Okay, but the skin should also be able to adhere well to the kit; another portion of a champion's thematic.
I see one spot where Ivern deserves a basketball skin, and that's in his ranged autos becoming "3 pointer shots". The rest is minor graphical stuff that still doesn't really go with the theme of basketball, like his passive circle being a hoop. Daisy doesn't really help the theme in any way either although she also gets a basketball particle.
In short, it's an underwhelming skin that is basically worth 750. It doesn't really enhance Ivern at all.
I would have rather seen a Void Ivern where his passive, when triggered on a camp, starts with "Soon, you will be a feast" and ends with a void portal/beast swallowing them. Daisy could also gain a void-style particle for her 3 hits while also appearing to be a sort of flesh golem that slams large tentacles similar to Illaoi. Ivern could also gain various void attributes like a void blast for his ranged particle with new animations because he now has lanky void tentacles for arms. A new walk animation would also work well in some cases.
Now, would I buy either skin? No because I don't play Ivern. That doesn't mean I won't advocate for quality standards or better skin ideas.