Red background for sure. Multiple pictures on the cover works to show the range of items you have. Has for the halloweenie part, that is a hard call. But I would suggest that once you decide on a cover style that you keep it simular year to year so that it can be easily picked out as yours. Maybe a color change each year but the same overall style. I was told that you should be able to identify a catalog from across the room without reading the cover. Almost like its a logo. And keep it simple, just title and date, readable in a few seconds. Good luck with it.