White or transparent images
No, you should send me the changes as long as the order is active (not yet completed). For additional changes you have to order another gig - the price depends on the amount of changes (usually $5 (basic package) for a few words to be changed or images).
The order is completed automatically after 3 days. Please respond in the order page within this time frame for further changes.
No, the order would not be delivered faster than the original turn around time. I usually have orders in queue and I take them one by one.