You can print whatever you want on the wooden stock. However, we do not recommend printing an image as the colours and crispness are effected by the wooden stock – the colours are not as bright and detail not as crisp when printed on the wooden stock. It is not really suitable for photographs.
If you are to print photos on the wooden stock, it would be best to adjust the photo to make it appear better - such as a duotone image, or increasing the contrast greatly. If you are wanting rich colours, or accurate colour, the wooden stock is not suitable.