Hmm had a look & it dosnt look the same mate, but the textures that come with it, the fluidy looking ones like antfarm, nebulae & molecular (Names of the textures in photoshop) have that fluidy look that could get in a nebulae, but yeah having a look i can see your nebulae is definitely different.
blurred brush.. that was it.. no texturing it, not scattering nothing
just the round brush as it comes
Anyways good work again
cheers