I've had the honor to work with great art team here at TapSlots to produce these machines.

I worked on animations for these games
art was done by :
Ploi Suwannarat (Art Director)
James Bousema (2D Artist)
https://www.artstation.com/jamesbousema/albums/591450
Camila Tremura (2D Artist)

you can play all these games on our facebook app!
https://apps.facebook.com/slotsgalaxy/

Check out other games produced by TapSlots
https://tapslots.com/about/