After encountering quite some slowdown with current mame core and artworks
i tried to convert mame *.lay to *.art for mame2003-plus core.
(original artwork downloaded from mrdo.mameworld.info)
grab it here -> Dropbox Download
[UPDATE 2019_09_22: added Asteroids artwork]
[UPDATE 2019_09_23: added Space Invaders artwork]
(readme.txt with credits of original author included)
Asteroid Deluxe preview screenshots: