I've noticed the seasons and rain (your climate) play a substantial role in your writing, helping to create the images. What if, for your next holiday, you go to a desert, could it widen your imagery?
I do the same, I often use jungles or the stony surroundings of Greece and Cyprus, because they are a part of the world I love, even if I cannot live in them.
Good question, Arthur...I think my imagery is less about my surroundings and more impressionistic, pertaining to the interior landscape of my heart :)