doodle sketch line art animal cats kitten characters hand drawn set. modern simple line outline style.

art cartoon font drawing line sketch monochrome brand logo artwork text diagram animal mammal calligraphy child cat doodle graphic outline pet silhouette funny kitten sketchy collection domestic fun set black character design icon symbol vector birthday collar cool greeting humor ink kids mascot paw print signs toy drawn feline hand-drawn lazy outlined tail vignetting abstract baby element fluffy cats characters hand isolated modern simple style set style