es we can but we’d prefer not to. This was a technique called selective colour that was quite popular several years ago. Beware of ‘Photoshopographers’ who rely heavily on Photoshop in an attempt to make their images look cool or cover up their mistakes by applying trendy techniques to your images.
Trends in photography come and go like trends in fashion. You don’t want to look back on your images in 5-10 years and hate them because they are over processed using some trendy technique. Remember when big hair and acid wash jeans were considered cool? Clean and clear images will always stand the test of time so we tend to go light on the Photoshop stuff and avoid chasing trends too much.