I don’t know if the poster wants a longer text or a shorter one, or a poetic feeling when choosing a name?
Let’s talk about it first
The first one: recalling the past - black and white painting, maybe only for the moment when you lower your head and think about it.
The second one: Warmth - I hope that when I raise my head, I will feel the warm tenderness
The third one: Childlike Innocence - Do you still remember the ever-lasting sweetness?
The first part can be used as the name of the picture, and the second part is the explanation of the name. Because I really don’t know what the poster wants, nor do I know where you are using it or what your intention is, so I can only give it based on my own understanding.
If you feel it doesn’t work, you can change it again.
Hope it can help the original poster, O(∩_∩)O~