Here’s an illustration of Bruce Wayne’s mansion (Wayne Manor). I really like how the blue highlights contrast against the black on the building and the trees.

A sketchbook displays a black and blue drawing of a silhouetted mansion landscape with a bat signal in the sky, flanked by paint markers and held open with clips.

Here’s the pencil sketch I started with.

A sketch of a building and the bat signal is drawn on a spiral-bound notepad with a black pencil resting on it.