Shopify Image Banner Customization

I need to update the Shopify default product image banner to allow multiple image banners for a single product. We are using a metafield to feed a custom.image_banner to each product.

Requirements:
- Enable multiple image banners per product, using metafields
- Ensure metafield does not show if empty (currently shows blank image)
- Apply solution to all products
- Image format: JPEG
- Display format: Stacked vertically

Ideal skills and experience:
- Proficient in Shopify development
- Experience with metafields and custom image handling
- Knowledge of Shopify Liquid and theme customization
- Attention to detail to ensure no blank images are displayed

Looking forward to your expertise!