PNG is much better for text and large areas with the same colour. With the pattern this has, PNG compression fails miserably.
I just took one of these images (3.9MB with PNG) and saved it as a 100% quality .jpg, and it was 1.9MB. For the sake of your fans I'd actually recommend converting them.
How do you put the wallpaper in the screen or monitor? I tried in photoshop but couldn't get it like this. And by screen I mean your preview image. Is there an app or something for this?
Worth it though, great wallpapers!
I just took one of these images (3.9MB with PNG) and saved it as a 100% quality .jpg, and it was 1.9MB. For the sake of your fans I'd actually recommend converting them.