Shoot whatever inspires you. Red should be the focus of the image. Don't be afraid to be creative.
I've been having this red playground in mind for some time since I bike in front of it everyday. When I saw this week's challenge, I hoped they wouldn't remove the red lights; and they didn't ;)
Also added a few other candidates for the challenge, all related to red and winter, as it decided to finally show up.

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Snowman sitting on a bench
6295 visits
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Snowman sitting on a bench
4755 visits
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A playground at night
4612 visits
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A playground at night
4347 visits
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A playground at night
4344 visits
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A playground at night
4200 visits
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Lit snowman
4760 visits