Eöl the Dark Elf from JRR Tolkien’s Silmarillion.:
“But Eöl, though stooped by his smithwork, was no Dwarf, but a tall Elf of a high kin of the Teleri, noble though grim of face; and his eyes could see deep into shadows and dark places.”
If you’d like a print of his glowering suspicion, you can find them in all sizes and finishes here.
This glowering gentleman was painted in a different way (for me): sketched entirely in paint, no line drawing at all until the end for details.
An interesting exercise, though riddled with mistakes and horror and doom. :)