Guy Coheleach style reference and prompts

The style is natural-history wildlife painting with exact anatomical observation, patiently layered feather detail and a softly receding atmospheric ground. Cool charcoal, slate and blue-black values meet small mineral ochres and warm grays. Diffuse light creates restrained narrow highlights and readable dark textures. The central subject mass sits above tactile granular support forms, while a quiet background keeps the square composition uncluttered. Fine brush description alternates with rougher natural surfaces, yielding realistic presence without photographic hardness.

A square natural-history painting shows a black raven perched on a low mound of rough stones, facing left in three-quarter profile. Its thick beak points slightly upward, and its folded wings reveal individual layered feathers in deep blue-black and charcoal rather than a single flat silhouette. Gray claws grip the upper rock, while the long tail angles toward the lower right. The stones carry pale lichen patches, ochre mineral stains and uneven facets; a small fringe of dry grasses grows around the base. Behind the bird is a quiet smoky gray-brown atmosphere, darker at the edges and softly lighter near the head, with no distracting landscape detail. The raven occupies most of the vertical field but retains breathing room around beak and tail. Patient brushwork follows each feather shaft and barb, then becomes rough and granular on rock and delicate around grass seeds. The lighting is diffuse, so the highlights are narrow and controlled rather than shiny. A subdued palette of slate, charcoal, blue-black, warm gray and faded ochre supports the bird's imposing yet ordinary presence. The final work feels attentive to animal form and habitat, neither cartoonish nor theatrical, with a painterly realism that allows fine observation and atmosphere to coexist.