Simplicity….not as simple as you think.
To get simplicity in an image can take a bit of thought. it might be simple lines, focussing on the thing you want by selective depth of field, or colour selection, for example.
Here are a couple that I think were successful:
Isolation using Depth of Field
A single rose, picked out from the others by using a wide depth of field, f1.8 in this example:
I have gone for this black and white image of wooden groynes on a beach, because it is all about contrast and simple geometric lines, and has no need of colour.
Linked to One Word Sunday at Debbie’s here