This is the character I made, unfortunately I feel like something is lacking in his design which is quite bland but I truly don't know what to add without overdoing it. I also am struggling with making the colors used on this design not blend together into one :(( Especially as the characters design main color is red.. I would appreciate any advice on how to fix it!!

This is the character I made, unfortunately I feel like something is lacking in his design which is quite bland but I truly don't know what to add without overdoing it. I also am struggling with making the colors used on this design not blend together into one :(( Especially as the characters design main color is red.. I would appreciate any advice on how to fix it!! | Artwod Feedback