Not sure why I haven't seen this yet but damn. Bro, this is amazing. I love the grass. The variation between the colors fits nicely. The figure is magnificent! I don't think I've seen you draw a better cat. You style gets better every time you draw.
The shadow is both daunting and brings a surround feeling of serenity. The glow effect is done very well despite what others have said. The star's in the background look really good. I kinda wish I knew how to make a night sky like that.
Anyway, this is the end of my little Critique but I must say you've done a marvelous job on this.