adult enigmatic essence mandala coloring book page for kdp book interior

black white adult vector coloring book page illlustration technique ink outline intricacy zenlike decoration pattern single flower drawing art product backgrounds people ornate textile mandala repetition design element seamless wrapping paper craft line floral leaf swirl alphabet canada cut doodle vertical abstract pencil tangled template text circle object symbol arabic style colored activity enigmatic essence kdp interior interior peaceful petals ability relax brain experiences harmonious haven peaceful portraits blossoming beauty