That's honestly super good feedback but I don't think i'd be able to do that for like 3 days. (travelling)

On top of that I'd maybe use a different base that sees more use of the wood, or to make a third texture that replaces the umbrella-less pattern, as I think repeating textures tend to look a lot better when they're being broken up by other unique textures.

I think the sticker pattern could work fine. The problem with most sticker warpaints is that they just create a repeating pattern of a random image, but this one actually does something that makes sense by having it be a bird eye view of umbrellas being held in the rain, with puddles appearing around the areas that the umbrella holding people seem to be walking. It's a cool pattern and it makes sense, although I do think the random black figure is a bit tacky though and the other umbrellas look incredibly basic and spaced out. I would definitely try to make them bigger and have them overlap with the puddles a little, and change their colors to be less of a bright white and more of a dim, faded team color. Then put a bit of shading on it to highlight an X pattern and shadow out the parts where the X isn't at to just tie everything together, and I think it would look really nice.

It just feels to specific is all. The stickers certainly aren't doing it any favours, but it leans very heavily in to one particular idea that doesn't really fit with weapons all that well

If your gripe with my WP is the umbrellas being "stickers" I'm more then happy to make a second version that's completely clean

If you're struggling with ideas, try to avoid gimmicks such as this. What you could do is take the idea of wet weather as a general theme, and base your warpaint around that. For example, having a simple flowing water texture (similar to cream corned), a more detailed mud texture, and then a less detailed tertiary texture to balance it out.