How do I make these clouds less transparent

So i have this nodesetup for a nebula (downloaded it)… and I want them to be less transparent… but I cant seem to make this happen

can anybody tell me what node I need to change to make them more solid/less transparent?

This node setup has errors, it connects shader outputs (green) to color (yellow). What it actually does is a bit hard to understand from nodegraph, better post a blend file. Currently it seems to mix emission and transparency, so I guess if you change the part that drives the mix, for example either the first (left) colorramp or blend factor in Layer Weight node, you change that. Or try changing the ramp in second ColorRamp node which seems to do something with distance from camera.

Thank you for your reply…youre right…its a lot easier with the blend file…
here it is

thank you in advance