Some of Nunu and Willump's skin are good but they lack something; tl;dr: needs an upgrade

First of all, I love Nunu's VGU entirely and whole heartedly. I think its the best rework yet surpassing warwick imo :D The only problem that I have with it is the VFX of some of his skin except Workshop Nunu & Willump(But the E can be gifts instead of snowballs), TPA Nunu & Willump and the best skin out there, Nunu and Willump Bot (but I have some concerns about this that I'll say later in this thread) because they're perfect already.

Let's make this clear first, I wont ask for particle effects or other effects for his skin in this thread but I will just ask for simple recolors in his skins which is not hard to do so with no further adieu lets begin :D

Sasquatch Nunu & Willump - So this is nunu's first skin and one of nunu's potential to be a great skin before his rework. My only concern here is that the skin itself doesn't have a 1350 feel to it which makes the other past VGU one 520 skins not into shame like Shadow Eve, Infernal Akali, etc. But I won't ask for a full revamp of the skins because i know that nunu and willumps teams are now busy and are being distributed into other teams. The model itself is really great though tbh. The only solution that I could think of is that, they should recolor its effects into Brown/Mud color. The snow particles are already ok when its change into a mud color. This would make the skin great and live into its potential. The W can also be recolored like a rock color but if it cannot be change I'm ok with it as a mud. Lastly, the snowman in his taunt can be mud color as well.

Grungy Nunu & Willump - The skin itself is ok because its just a 750 skin but I wish the W can be a play ball color (diff color) instead of being a snow color(red,blue and yellow).

Demolisher Nunu & Willump - This 950 skin has a potential, the only concern that I can see here is the snow colors. I wish could be recolored and change into something like gray/black snow colors. Or! Just like Dark Rider Sejuani's particles, which is greenish blue. See her her skin preview if you wan to see what I'm saying. Plus, I think they're in the same AU.

Zombie Nunu & Willump - My only concern is nunu's taunt, the snowman guard can be colored into a green to make the skin perfect :)

lastly,

Nunu & Willump Bot - my only concern in this skin is his ult, to be specific, the countdown that willump makes which makes it like a pay to lose skin (which I would doubt because I really love the skin). It could be changed into something like willump is making kawai faces or just an X face or even beter an XD face lol.

That's it folks, Thats the only concern that I could think of. I wish these skins could be updated cause they really need it. I also don't have a PBE account so I can't address this to any rioter developer. Wish reav3 could see this. Thanks for reading :D