I am a Gardener from the UK. I am also a tutorial team member connected with the software called Pixelmator.
You can use my images freely, but if you plan on using my images on websites or any other media that is viewed by the general public then recognition would be appreciated but not obligatory. Also it would be nice if you would contact me if you plan on using my images, as I would like to know how my images are being used.
One last thing, please do not place any of my images on other stock photo sites.