So lovely! I may have to try this technique quite soon.
Your pen work does a good job indicating the texture of the feathers, beak, legs, pebbles, and grasses. Perhaps that's why the cross-hatching looks off? I get the impression of a shadow falling on burlap, yet the texture of the road seems either dusty or sandy. Have you tried pen-shading the shadow with dots, broken parallel lines, squiggles, etc. which might reflect the texture/perspective of the road under the bird?
Just a beginner here, so feel free to take things with a grain of salt
Happy painting and inking!