Christian Book Cover Design - Prototype Only (for now)

Greetings! I need to begin the design process for my book cover, this first step is to simply receive 2-3 prototypes that will serve as my launching pad towards what my final cover design will be. My genre is Christian Living so I'm writing a non-fiction book on Fatherlessness. I need my cover design to fit comfortably into that specific genre. I'm looking for a really clean, almost minimal and feminine design while still being vivid when/where necessary. The primary colors I have in mind are white and pink, but there is much room for flexibility and your creative eye. I'm also looking for my design to look great as a thumbnail since it will sit online beside other books within the Christian Living genre. I need my book to somehow depict/capture one of these themes or something similar: Our Heavenly Father's love for His adult female child The process of a girl becoming a woman, growing into the Father's Love A woman learning to live in the love of her Heavenly Father (without necessarily using Christian symbolism such as crosses, etc.) (Additional details for the final product - I will need the front, back and spine for 1) paperback (via Createspace) and 2) Hardback sleeve for IngramSpark, and 3) Ebook. But FOR NOW - I only need prototypes. Examples of what caught my eye attached.