Surprised we didn't have one of these already.(That I could find.)
Being a crossover with some of the biggest names in gaming fan artists of all kinds produce some really great stuff.
https://www.deviantart.com/art/R3-Super-Smash-Bros-Universe-Wallpaper-Revisited-663890231
(These were a personal favorite and made the lead up to Smash 4 awesome.)
https://xinbra.deviantart.com/art/Get-Ready-to-BRAWL-Fin-57207197
https://bandiboy.deviantart.com/art/COLLAB-Mac-n-Sam-UPDATED-446744823
https://www.deviantart.com/art/Bayonetta-and-Cloud-580253573
Any you really like?
Being a crossover with some of the biggest names in gaming fan artists of all kinds produce some really great stuff.
https://www.deviantart.com/art/R3-Super-Smash-Bros-Universe-Wallpaper-Revisited-663890231
(These were a personal favorite and made the lead up to Smash 4 awesome.)
https://xinbra.deviantart.com/art/Get-Ready-to-BRAWL-Fin-57207197
https://bandiboy.deviantart.com/art/COLLAB-Mac-n-Sam-UPDATED-446744823
https://www.deviantart.com/art/Bayonetta-and-Cloud-580253573
Any you really like?