For this image I actually had (for me) the right lens available. My short lens of choice is an 18-135. Not a high end professional landscape or portrait lens, but the most flexible I own. It is also the first Canon lens I bought. So not new either.
I have tried using prime lens, we own a few, but this lens gives me the lengths I want on the fly.
Photograph taken in the gardens of Middleton Plantation, mid afternoon.