Regular: Usually consists of 2 or more pictures. Text, effects, brushes, etc. are allowed. You must use the pictures provided, unless otherwise stated.
Add Effects: A plain blend is provided, and it�s up to you to make it look more interesting. You may use brushes, text, effects, etc. DO NOT ADD ANY MORE IMAGES.
Colourise: A black and white image is provided and you need to put the colour back in it. Try and make it look as realistic as possible, unless otherwise stated. You may use brushes, text, effects, etc. DO NOT ADD ANY MORE IMAGES.
Set-it-up: Like a regular blend, but images are provided in sets, and you are to use all the images from the one set you have selected to make a blend. YOU CAN ONLY USE ONE SET OF IMAGES PER BLEND.
BOTM (Blend of the Moment): A blend that you have created, that you really like, and want to show off. If you win, your blend is displayed on the site until the next challenge is completed.