What about LIFE. You could have several mini series to go with it; New life - Birth, buds on plants a new dawn etc.. Practical life - Day to day stuff Fun - all the funstuff some of us get a chance to do in life Ageing - the older side of life, decaying etc.. You could have death but I think that may be to sensitive and morbid. From the above list I would like to attempt most of them, I am just going through the learning phase and taking part in a challenge is one way to push yourself to achieve better work.