That is a good idea, but with the programs that I use, a lot of detail can be lost if shrinking by even one or two pixels (much more detail than I would prefer).
Have a nice day.
Edit: I am going to take a break from these for a few days, but I think that I have a nice selection of them, right?
However, for the hack, I do have an idea... I know that most of the standard sprites are 32 x 32, right? Well, how about we remove the standard, since this will hopefully allow for some diversity on the world map, and might make it look a bit more attractive (hard to say until the time comes though).