[[How to] Who is that pokemon? Background, how to geometrical paint brush effect?]

Hello,

 

could you tell me please, how could I do something similar like this

I hade some progress with plugins in Disort category. First Dents and then jitter by pyrochild. 
But I am not really happy with the result. I think I have to work with blurs. I am sure the organge lines in the red part can be done with blurs.
How do I achieve the  light blue paint brush? Btw: This effect can be done in Microsoft's paint but doing it by hand would not look good I think.
Any ideas?
Thanks.
 

[Glowing tail/ comet launching from planet (video)]

Thank you.

[Glowing tail/ comet launching from planet (video)]

Hello,

currently I'm creating concept art for a mod (pc game modification).
Could you help me in creating (showing me how to) a glowing tail similiar to a coment tail with paint?
I found a perfect example in the movie "Starship Troopers":
https://youtu.be/8Rx8_vjbXX4?t=2m11s

I need them to start from a planet in different states (starting, in the middle, reaching the target), they are aiming for space ships.

Maybe from this one:
http://www.tokkoro.com/picsup/2859104-earth-space-moon-planet___cosmos-space-wallpapers.jpg

What I have done so far:

#1 With gradient tool I managed to make a "beam" but it is to straight.
#2 Starting "beams"

 

Would be awesome if you could give me some hints or ideas
Thank you very much.

Cheers,
Rootfort