"Tyger Tyger, burning bright,

In the forests of the night;

What immortal hand or eye,

Could frame thy fearful symmetry?"

It looks really good. I like the tiger's face especially. I'd say the grass looks a bit more like toxic sludge the way it droops like that. Perhaps using grassy textures around the edges that cut into the green from the border color, instead of having the grass drop down like that would make it look more like a spot of light in the jungle.