I think they have potential.
Some winter names I thought of are:
HollyNicholasNoelNoelleJackEstelleEstellaAster
Spruce
DouglasChristmasJanuary
December
ValentineGarnetAmethystTalvi
GwenythCole
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PNL:
http://www.behindthename.com/pnl/126941