For November, I have a few ideas, so I want to put them out there. The first is Thankfulness. That means that photos would be of something that you got that really means a lot to you. This could be a plant that you got as a giveaway or something that you started from seed from the seed bank. I am thinking along the lines of something you got that you didn't trade for or buy.
The second idea is Fall Colors. Pretty self explanatory, but any plant that is showing nice fall growth/colors.
The last idea is Gluttony. These are pictures of your plants that have stuffed their gullets with bugs. You can look at the last two November contests here 2020 and 2021 for similar ideas.