Okay anbu masks are editted
all the time because they're so basic. I've seen countless anbu masks that look like they all used the same base. Even if there weren't a sickening amount of anbu masks that exist, it still is an extremely basic hat. It's like saying someone can't have a baseball cap hat because another baseball cap hat already exists (reference to Venus Legends hat which I debated denying because the cap of it was an edit of an old hat that was sold in a shop a while ago...but it's a freaking baseball cap. There's nothing unique about it.)
The mask looks similar, but it's different enough that it's okay. If it had a more unique design that was ripped of another anbu masks then I probably would say it's bad, but it's not. It's a basic, average anbu mask.

The only debatable similarities (other than the shape, but that's literally the default shape nearly all anbu asks go by...) is the shiny, swirly effect on it, which doesn't even look as nice as the black mask. The eyes aren't a different color, there's no stripey design on it, it's not the same color... It's fine.
As for Venus Legends hat, I looked into the mask being similar to redrums and...it isn't ripped.

It's similar, but it's not stolen. Not only that, but it has a ton of other stuff on it that redrum's hat doesn't. The only thing I worried about was the baseball cap. I came pretty close to denying it because of that but, like I said above, it's a baseball cap. It's basic and average and there's not much you can do with that. Nothing unique about it. It doesn't have the same colors as the ones sold and it doesn't have an "A" on it like the others.
TL;DR: Both hats are fine. They are obviously different. They don't even look as good as the masks they're similar to.