define significant

The last time I bought passport photos from a photo booth they came out all horribly oversharpened. Whilst the technology has possibly improved since 2001 I shall firstly attempt a home-printed version, though the slight difference in lighting and therefore the slight change in colour of the wall behind me had the post office counter people sucking their teeth and tilting their heads, which might apparently portend a request from the office for a new photo, for which I have retained the image I used as a sizing template.