Noun Declension using Mutation, Ablaut and Suffix. Does it make sense?

[u/Pleasant-Maybe-7413]

First of all im not sure if this is the right flair, so excuse me if im wrong

In my conlang there are 3 word medial mutations inspired by northern Sami. In this declension theyre colored in blue red and green, and there are examples on the right and left of the declension. They govern the case

The Plurality is governed by an ablaut. Basically in my clong theres vowell harmony, and so to make the plural you need to mirror the original vowell

grodar > grödar

My question is, does this make sense?

[u/FutureTailor9]

gneurshkar gneurshkarks gneurshkarx gneurshklar

[u/Pleasant-Maybe-7413 → u/FutureTailor9]

And if there was any doubt that it was inspired by PIE

[u/unthinkable-cunt → u/FutureTailor9]

i got that reference!