Dear reader, i need your help (badly). I've been working on more nebulaes stuff, and i can't decide which blending type results in the more realistic / nicest nebulaes.

First of all: a nebula with alpha-blending:


The same nebula but with additive-blending (and a slightly different viewpoint):


And for reference, the yellow-ish nebula from my previous journal post, but with additive blending this time:


I like the additive blending nebulas, but they look less "sharp" (as for the shape of the gaz cloud) than the alpha blended ones. Please leave a comment to let me know your opinion, thank you!