‘Xensation’
Wading through a load of CDRs for something else I found these five images, not sure who did them or how I even came to be in possession of them but I really like them. I’m guessing they date from around 2000 or later as they include the ‘x’ as ‘z’ in titles. Although i’m not sure they totally fit the Ninja style, if they ever did a set of greeting cards these would be the illustrations.
‘Xencounter’

‘Xendeleyev’

“Xenvy’

‘Xensual’