Oooohhhhieeee!!!!! Sani you should Draw like poster Covers or fighting game character slots or something. Because MY GOD the colors and detail that always goes into your art is beyond good.

The Kaho All Colors Card in One Word is A Spectrum. a spectrum of Impacting Heavy colors slowly fading from a Warm to Cool Pigmentation. With the Neutral green backdrop holding everything Together. All the Particles on top bringing everything to an impactful and powerful burst of energy.

The All Fire Variant is Beautiful Cinders, Ashes, and Pure Molten Excellence, the Shading on that one looks super fucking cool. Also the small detail of the Fire Gradient behind Kaho.

I like how you did the Kaho OC she looks like she can have lots of fun, and Has A Spunky fun attitude, but can kick the Crap out of Your Butt if you piss her off. I'd love to see some more Kaho she is cool

COMBO BREAKER!!!

Got to say, pretty cool looking design here mate, looks great. Digging the color palette and as well the character design. Nicely done here