You did really great work on here as well ^^
I love it!
Great use of color scheme too!
I am in love with your works. I wish I was that awesome!
About the card part, I don't know whether these are intended to be printed, so I'll go ahead and blurt it anyway, just in case there are (or will be?) such plans: I feel that the value is rather obscured, as in it's a pretty dark and thinly outlined font on a dark background, plus the figures aren't very large; it would take time to get used to which card stands for which value/suit.
Traditionally, figures on standard playing cards are stylized, in the sense that it's easy to tell the differences between the King, Queen, Jack and Joker cards (the King has a distinguishable crown, the queen is the only female in the pack, the Joker is the only figure card that isn't a bust etc.), so most of the effort goes into portraying the 4 suits. Since the characters you're portraying aren't likely to sport features that make their respective ranks obvious (without needing to look at the rank and suit values in the corner), I think you could take advantage of the background: for example, the rank could be prominently displayed in the background and the suit could be displayed in one or two corners, perhaps around 1/6 ~ 1/8 of the card's dimensions.