The theme is “windows”. Walls form borders; windows and doors are the holes in them. While doors are thresholds that can be crossed, windows allow for a more careful approach. Observations in both directions are possible.
https://bopaula.wordpress.com/2017/08/17/thursdays-special-windows/
pictures imperfect blog 
Yes, we tend to linger more at windows than at doors. This is such an adorable and finely captured scene. Great approach to this theme. Really love it!
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Thank you. And the boy looks so incredibly serious.
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What a great expression! 🙂 🙂
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