I think the colors you have chosen are too dark and lacking the contrast needed to fit in with Minish Cap. Minish cap was a very bright and cartoony game, especially the sprites. Even if the colors are from the palette, they were most likely used for darker shadows than to fill a whole sprite.
Also, there are other things to consider when it comes to the style of Minish Cap, and that's the technical aspect of the pixels. Minish cap sprites had a lot more anti-aliasing than previous Zelda games. Everything was a lot smoother and technical so looked a lot different than the sprites from say, Link to the Past. They also avoided techniques like dithering(as seen in the antennas).
I should also mention, lastly, that LttP failed technically in pixel art when it came to sprites and such. It had a lot of pillow-shading, something you don't really see in Minish Cap since pixel artists have improved a lot since then.