Very nice effect!
It would be nice of the 2 images on the right side of the tunnel would be flipped/mirrored.
So both right and left are readable.
And yes donations are what you deserve.
Same goes to rexrainbow.
Both of you are contributing so much to the C2 community.
A tip: just like rex make a website, or your website download friendly.
So all your fx users can find the effects they want in a download list.
Then start a patreon.
This way you can ask for montly donations.
Or we can donate for you to create fx packs.
But monthly donations seem a better way.
I think it would benifit both yourself and the community if you choose that route.
Because you as well as rex seem to become a huge part of expanding the limits of C2.
I would love to make donations via patreon monthly to you & 
rexrainbow
And i think i am not the only one.