I'm not sure if this one breaks any rule. I've drawn the building, but not the fireworks (I tried, but the result wasn't quite good). I've added the fireworks using Photobucket's edit options. So is this allowed or not?
I am not quite sure what you mean.
If they are stamps or brushes or part of a stock package, I would say that is not your own work. I would even avoid special brushes that come with Photoshop.
If the fireworks are an actual filter in Photoshop (ie there is a menu option named 'add fireworks'), that is probably more of a grey area, but I would ask for an admin to clarify on this one.
But if they are some sort of manipulation (ex: you drew some brightly coloured dots and used a filter to spread the dots in a way that looks like fireworks), then the fireworks were still created out of your own effort.
