a hand-drawn bat doodle for night-time events

invitations promotional decorations nightthemed celebration atmosphere simplistic silhouette invitation decoration mysterious darkthemed handdrawn nighttime halloween festivals impactful materials nocturnal creatures batthemed creating suitable striking suspense creature branding mystical perfect parties mystery designs purpose shadowy graphic artwork holiday imagery macabre festive visuals drawing outline haunted doodle events spooky design adding animal vector autumn flying creepy crafts motifs symbol figure gothic eerie clean lines ideal sense event