The concept has a strong hook with its mix of giant-size action and personal vengeance, but it could benefit from more clarity and stakes. Right now, we know Tamara grows to 420 feet and seeks revenge for Matthew, but adding a hint of what kind of trouble he’s in or what obstacles they’ll face could strengthen the intrigue.
For example:

"Tamara’s transformation into a towering force of nature sets the stage for a high-stakes revenge mission. As she and Matthew take justice into their own hands, will her immense power be enough—or will it bring even greater challenges?"
This keeps the excitement while hinting at potential conflict and emotional depth.

Something about your smile makes me want to unravel its secrets. Tell me its story, with just a touch, slowly.