Downloaded this and gave it a whirl for a bit last night, so I?ll give further detailed feedback on the gameplay once I?ve had a chance to play some more.
Have to agree with 9/4, there does seem to be a lot walking. Many of the maps are huge without much detail, perhaps you could compress them together. Then again you might be planning to fill them out with detail later. Also I would recommend going through your tilesets and sorting out the priorities, so Reimu isn?t walking through the torii and many of the doors for example. Some of the maps, like the shrine, are missing a border. Love the choice of music at hakurei shrine.
Having only recently discovered RMPX, I?ll be keeping an eye on this one. Will be looking forward to further updates, you said something about a battle system? Would you hate me if I asked where you got the character sprites?