You can keep making skins for knifes and shizzle, but the chance is rare for it being accepted.
I don't think you know how it would work.

First of all,
if they added this, they would pay you for your creation- I dont know how much, but if i took a guess on how it works, it would be some amount by whats earned from it. That would cost them tons, and nobody likes paying to others. Esspecialy not ♥♥♥♥ tons

Second of all
If you want to make a knife skin, make it for every knife, dont make it a 1 skin knife, i mean, all the other knifes in game have a skin for each knife, like fade- every knife has it (meaning make carbon fury for each knife before starting)

Third of all
Making knifes anyway is just a waste of time if you want it added. If you did it just because you would want some attention, fine, but if you want this to be added- You didn't think this one trough and wasted time. They wont add knifes.

Fourth- This is just bassicaly the stock karambit with some period lines on it, get an original skin, its just plain n bad, i mean, good job on making a skin, i probably couldnt do any better, but this knife would be... Meh

Fifth- Make wears for the knife (factory new/battle scarred) I mean, there is no knife in game with just 1 wear, you should have made more examples- even if it was a waste of time anyway.

I just think people should stick to making normal gun skins
Like we need a blue rarity stattrak awp or ak (But its really up to Valve)

Dont get all butthurt pls