Thanks for the nice comments! Just for the records: the image is a collage of 3D renders of ships modelled and textured by yours truly on a background image found on the web (the asteroid field)- so the composition is indeed part of the orignial artwork
The piano dominates probably because I am a pianist
Thanks again and felicitations to all the runners-up !
As for the prize, it seems an easy decision, as Sirius online (the steam early access game, yes?) is PC-only, and I have no PC... I'll thankfully take the steam voucher, with thousands thanks to the generous donor - thanks Victor!