Tennis 30th Birthday Balls on the court ペーパープレート

Bright, professional watercolor illustration of a manicured grass tennis court with short, evenly trimmed grass and crisp white court lines. Several classic yellow tennis balls are captured in dynamic motion around the court — gently bouncing, rolling, and mid-air — creating a lively, celebratory feeling while remaining clean and refined. The composition is balanced and uncluttered, leaving generous open space in the center for optional customization. Color palette is sporty and polished: rich controlled green grass, sunny yellow tennis balls, clean white lines, and soft natural shadows.