60 static banners, various sizes

I need a total of 60 static occult-themed ad banners designed, in the following formats: 8x 468 x 60 10x 728 x 90 7x 250 x 250 7x 200 x 200 7x 336 x 280 7x 300 x 250 7x 120 x 600 7x 160 x 600 You will be responsible for all imagery and creativeness for these ads. They must be eye-catching and professional, fit the theme of the websites being advertised (occult themes), without being tacky. I've attached a few examples of current banners, although we're expecting better as these are the old banners we want to replace. All text will be provided. Please provide a realistic timeframe for this project, allowing for any revisions. Payment will be by escrow, released only after all work is finished and approved by us. Please include the mention 'I agree to the terms' in your bid to show that you have read the project details.