I would play it if you add some gta feeling.
For example dominating the streets with your trainer homies. I would love to do a Charizard drive-by or to farm civilians to get some rare candy
Or maybe you could create "renvenge of the pokemons" or "pokewarfare"
To be serious, I really like your graphics but I am not sure if it wouldn't be better to spend your time on something that you can use afterwards. Creating assets for a game you will never release isn't that effective.
But as long as you enjoy creating it, just go for it