It is perfectly acceptable to begin decorating for the Christmas Holidays. It's wonderful to spread cheer in your neighborhood with festive lighting and whimsical characters.
However, please remove the rotting jack-o-latern from your front porch, and the scarecrow sign from your front door. You should never-ever-ever overlap holiday decorations.
As cute as the pumpkin bag stuffed with leaves once was, when you break out the moving reindeer, it's time to retire the pumpkin.
Thank you for your understanding.