I charge per image basis.

You can send me images by Dropbox, We transfer or any other platforms but I prefer Dropbox mostly. 

You can send me raw images or jpeg images. No issues. 

I will send you high resolution jpeg output images. Sometimes I prefer to send you Tiff images as well.

By the way my per image price is very reasonable already but obviously you will get discount if you have a big or a long term project for me. 

I am so sorry for that but I assure you that your every project will be completed in time.