Hi TDM! So many wonderful art packs for this. Have fun. Let me know what you end up using. Also search Google Images, there are tons of background images of space (many public domain from NASA). From Roll20 Marketplace, check em out: <a href="https://marketplace.roll20.net/browse/set/583/alien-worlds-map-pack" rel="nofollow">https://marketplace.roll20.net/browse/set/583/alien-worlds-map-pack</a> <a href="https://marketplace.roll20.net/browse/set/1098/quick-encounters-shadow-lands" rel="nofollow">https://marketplace.roll20.net/browse/set/1098/quick-encounters-shadow-lands</a> <a href="https://marketplace.roll20.net/browse/set/1993/vmw-the-ethereal-planes" rel="nofollow">https://marketplace.roll20.net/browse/set/1993/vmw-the-ethereal-planes</a> <a href="https://marketplace.roll20.net/browse/set/2206/space-balls" rel="nofollow">https://marketplace.roll20.net/browse/set/2206/space-balls</a> <a href="https://marketplace.roll20.net/browse/set/1339/instant-dungeon-crawl-planar-adventures" rel="nofollow">https://marketplace.roll20.net/browse/set/1339/instant-dungeon-crawl-planar-adventures</a> <a href="https://marketplace.roll20.net/browse/set/1466/instant-dungeon-crawl-planar-adventures-2" rel="nofollow">https://marketplace.roll20.net/browse/set/1466/instant-dungeon-crawl-planar-adventures-2</a> <a href="https://marketplace.roll20.net/browse/set/1545/instant-dungeon-crawl-planar-adventures-3" rel="nofollow">https://marketplace.roll20.net/browse/set/1545/instant-dungeon-crawl-planar-adventures-3</a> <a href="https://marketplace.roll20.net/browse/set/1742/instant-dungeon-crawl-planar-adventures-4" rel="nofollow">https://marketplace.roll20.net/browse/set/1742/instant-dungeon-crawl-planar-adventures-4</a> <a href="https://marketplace.roll20.net/browse/set/1797/instant-dungeon-crawl-planar-adventures-5" rel="nofollow">https://marketplace.roll20.net/browse/set/1797/instant-dungeon-crawl-planar-adventures-5</a> <a href="https://marketplace.roll20.net/browse/set/2538/instant-dungeon-crawl-planar-adventures-6" rel="nofollow">https://marketplace.roll20.net/browse/set/2538/instant-dungeon-crawl-planar-adventures-6</a> <a href="https://marketplace.roll20.net/browse/set/2614/quick-encounters-chaotic-lands" rel="nofollow">https://marketplace.roll20.net/browse/set/2614/quick-encounters-chaotic-lands</a> <a href="https://marketplace.roll20.net/browse/set/2293/battle-terrains-abyssal-planes" rel="nofollow">https://marketplace.roll20.net/browse/set/2293/battle-terrains-abyssal-planes</a> After consideration, I recommend looking at Instant Dungeon Crawl Planar pack #6 first. It looks very promising for a boss battle in a void, with extra value maps to save for later. Happy adventuring.