More power to you mate. 
Thanks mate
Bit of a show of how I work through things when I’m making them, all images are available on github (link at bottom). The last one was were I was pretty happy with it, might end up changing the background but who knows, working on a few different things at the moment and mainly made this to have a break from the other stuff as it’s a lot more complex.
Other images are in the same repo and are all named pioneer-plaque(whatever)
I was ok with the testes and bosoms of the first one 
. This is like the DaVinci Vitruvian Man. Way cool.
And heres a bit of a sneak peak of something I am currently working on, need to redo the oceans movement and still want to add some slight movement to the clouds
Yer I love Da Vinci’s stuff, have a paper model book with his inventions in it, I actually might try make something based on it at some point. I wanted to use the image off the voyager craft but the images I at the time found weren’t the best to work off.
Something I forgot I had put together a little while ago that I just came across, love some of the designs by the original artist a lot
Original Image from here
https://www.deviantart.com/blacknirrow/art/Gastly-Haunter-Gengar-868939734
Not really a wallpaper, just re-enforcing a few things I’ve learnt/been learning and made this in the process
second one over there was a little personal… 
Wallpaper should be easy enough to do on your own just open in GIMP (i think even gwenview can do it) and flip the image and export. The GIF a bit harder as I have to change the orientation of each frame but I was already thinking of something a mix between this and the other one I did with the astronaut also spiralling.
Only way I know is to go layer by layer, there probably is a way easier way though