Take a look around the template shop! Scroll to the bottom to see more information about sizes, timeframes, and changes.
Your banner will be ready within 72 hours.
You will recieve 1-2 versions of the banner. the first will be compressed to under 350kb. Where this results in a loss in quality, you will also recieve another version compressed to under 750kb.
Future changes can a reasonable price. If you need your banner changed, shoot me an email at firstname.lastname@example.org and I'll get back to you as soon as I can.