>>32972005People give the Vani-line shit but it is largely unjustified. Consider there was only one solid ice Ice-type prior to it's introduction, Regice. Well received, favored over its trio partners, imitating regice seems the way to go for ice design.
Fast forward to Unova, the US of A is well known for helping spread soft-serve internationally. This regions core Ice-types are decided to be a 3 part lineage, solo Ice, can be found realistically near/inside urban centers and as well as the boondocks. So you as a designer consider Regice and decide it has to contrast the impersonal, beautiful yet soulless, geometric snowflake design that is Cryogonal. You draw faceted icicles + snow mounds add eyes and call it a day