These images are fairly large in width and height (usually at least 2200 pixels in width). The number of dots per inch is 72 - quite a standard resolution, in this case it does not spoil the image in any way, if you use it for viewing on a monitor even in an enlarged state. Typically, high dpi is used for printing and the image must have a different color resolution. I can fulfill these conditions if the client asks me to do so before starting work. Otherwise, there won't be much difference between 72 and 200dpi, since the canvas size is quite large.