Send a screenshot of your Mods and WonderfulWhimsMods folders please, I'll see if the mod is installed correctly!
https://www.take-a-screenshot.org/
What's inside the WonderfulWhims folder?
Is there supposed to be a screenshot there?
Cause I don't see anything I'm afraid.
Your WonderfulWhims mod files are one folder too deep.
The correct location for the mod is Documents/Electronic Arts/The Sims 4/Mods/*one folder max*/*mod files go here*.
The game can't see the mod because it's buried too many folders deep.Move the files up one folder and it should be alright.
how?
Just cut/paste it,.
If you don't know how to do that, use Google to find a tutorial on how to move folders in Windows!