UK copyright law permits you to 'quote' other people's images, provided that they are relevant to your discussion or critique (i.e. not just used for decorative purposes), and that you have used no more than is required for your specific purpose.
UK copyright law permits you to 'quote' other people's images, provided that they are relevant to your discussion or critique (i.e. not just used for decorative purposes), and that you have used no more than is required for your specific purpose.