I am not the person who has the ability to say it (Since I have never used POKéMON Essentials); But you should probably up the quality and polish some things a little bit.
Many sprites look Psyducked up (especially after the Advanced Generation saga), and you just give up on the level design in not the second, not the third but the first region in the game. In Kanto itself, from the first map, you can already see what the quality of the game will be like, a gargled, comprehensive but loose mess.
Most events from the anime do not happen even though scripting scenes in RPG Maker is literally the easiest thing ever (I have used it before), but you just gave up and didn't even try. The battle UI is the default of Essentials, maybe you could have gone for the Elite Battle System, and with that used more of the things the developers who made it have to offer. The sprites generally look bad, and you did not change the musics at all. I am fine with the tilesets, probably could have changed the palettes, but Gen III is up my alley far enough.
All I am saying is that you should probably revise the game and go through all of your progress and try to get better, and try to get your level design to a higher level, because currently, things are way too spaced out, events are just barely there, battles aren't interesting and the regions are just empty husks without any effort put into them.
