The concept of this design aims to connect the "retro" vibe with young reader through the use of Voxel art style and the bold color to enhance the game-inspired visuals (Minecraft).

The uniform is in blue and white because the colors often associated with integrity and professionalism which reflect the qualities of baseball legends. The phrase "For Kids" is in bright yellow color to convey the youthfulness and happiness, reinforcing that this book is meant to be fun and approachable.

This design has a more playful and action-oriented vibe by placing the character on a raised platform, giving a sense of elevation and heroism. The red cape worn by the character adds a bold accent, as if the character is a hero.

The bright blue background and green platform give the impression of open space and freedom, reinforcing the playful and imaginative vibe.