Hey guys, I know you probably hate these posts but I was wondering if you could help me...

(credit to tashakalaka)

To achieve this colouring would you just add a few selective colour layers or would you need to do fill layers with different opacities, etc on them?

(credit to hannytah)

And lastly, where are there some textures like this? Sorry it's not a great example, I had one earlier in the day, but I didn't save it and I don't feel like going through my whole history, I've been searching icon sites all day.

I've tried to find some, but all I can find are ones where the grunge is large and blotchy.
I need some that are brightly-coloured with small grungy-ness.

Thanks so much!