My return to Spriters resource (now VG resource)

[Mr. Jam]

There are still a few problems I see here. The colors need to be more saturated as they currently look a bit dull and the colors you used for the hue shift seem a bit odd. For the grass, it might help to have the brightest color a slightly yellowish-green and slowly make the other two darker colors a little greener. There also doesn't seem to be enough shading in the tiles making them seem flat. There doesn't seem to be enough shading in the tiles so it may help to add a little more.