Grumpy Rhino Children's Book Illustration

A simple children's book style illustration of [a single grumpy rhinoceros] standing in profile facing left in [an African savanna]. The rhinoceros is large and centered, featuring a rounded gray body, thick sturdy legs, two ivory horns, small pointed ears, white toenails, a thin tail with a black tuft, and a stern, frowning facial expression. Style: bold uneven black outlines, flat graphic layout, hand-painted gouache or crayon texture with visible brushstrokes. Setting: bright cyan-blue sky with two blocky white clouds in the upper corners, flat golden-orange dirt ground with scattered small dark rocks, six tufts of dry brown grass, and a low row of rounded green bushes along the horizon. Playful, flat picture-book aesthetic, no text.