Artbook X1/X2?

[Orpheus_Underground]

Hi! I'm such a big fan of the concept and style of the games! I looked to see if there was an artbook to purchase but I didn't find any. 
 

is there somethIng I'm missing? If possible, I'd love to collect the concept art to at least have a collection of it- 

 

thanks in advance and happy holidays!