be careful of banding and hard diagonal angles, it can throw off what something is supposed to look like and make it feel weird or odd. Even though this is pixel art, you want a good natural flow for objects so the use of hard edges and stright lines should be carfully thought out before placeing them. Other than that, youve improved a lot since your first post! keep it up! cant wait to see more!
First of all,thanks for attention.You absolutely right about the diagonal part.Sometimes things go wild about them .