Personalized Proud Sis Baseball Shirt

4. **Create a personalized baseball sibling support t-shirt design in 1080x1080 square format on a #D3D3D3 background, using a modern sporty typography composition with built-in negative space, all elements fully contained in the frame, and a realistic finished-product appearance; make the main statement “PROUD SIS” in huge bold slab varsity letters, with “SIS” filled using a realistic action photo mask of a youth baseball player in a green-and-white uniform sliding into base, dirt flying and the image clearly visible inside the letterforms, while “PROUD” appears above in a contrasting solid athletic type; personalize the design with the name “MASON” and number “11” below, plus a smaller phrase reading “my brother plays baseball”; keep the overall look trendy, emotional, giftable, and easy to imagine as a custom shirt listing image, with a baseball niche appeal focused on family pride and tournament-season support.**