With the handy app Snapseed, it is a piece of cake to improve the photos taken with your mobile phone ( or other camera ).
I converted this picture of a rather dull street in Weesp into a more pleasant one, (especially considering it is springtime here in the Netherlands now):
here a screenshot of the original:
Here are some examples of how I improved some photos:
original (screenshot):
improved (screenshot):
and another original:
improved version: