A romantic graphite pencil drawing of a pair of Northern Cardinals perched side by side among climbing roses, rendered with botanical precision on a white background. The male should have a full crest and rich dark tones suggesting vibrant red plumage, while the female appears in softer, lighter values reflecting her tan-brown hues with reddish accents. Both birds show strong conical beaks, crested heads, black facial masks, and alert, harmonious postures that convey their close bond. The intertwining rose canes form a natural frame with full blooms, buds, and mature hips, all drawn in exquisite botanical detail. Include serrated leaves, realistic thorns, and a few insects like a bee or butterfly for life and texture. Add subtle morning dew drops and a weathered wooden trellis with peeling paint for depth and realism. The overall composition should celebrate avian grace and botanical artistry, emphasizing the peaceful companionship of the cardinal pair.