I would like to see a photo...

If the IQ of any image limits print size, it automatically limits the sale price of that image as a print.

For example, if you can print an image to a maximum size of 16" x 24" & sell it for say £100, a 20" x 30" print might sell for £130.  It's just as likely to sell at the smaller size, but larger sizes increase the number of options & potential profit.

For examples, check out any site selling prints...my website for example.