Answer:
1. The imagery in "The Raven" by Edgar Allan Poe is dark and depressing, evoking a feeling of despair. The poem is written in stanzas of four lines each, with a rhyme scheme of ABAB. The theme of the poem is loss and grief.
2. The imagery in "The Tiger" by William Blake is fierce and powerful, conveying the strength and majesty of the tiger. The poem is written in stanzas of four lines each, with a rhyme scheme of AABB. The theme of the poem is the fearlessness of nature.
3. The imagery in "The Lamb" by William Blake is gentle and innocent, conveying the purity of the lamb. The poem is written in stanzas of two lines each, with a rhyme scheme of AABB. The theme of the poem is the innocence of youth.