You need some contrast in your colors and the Varia Suit (including the Arm Cannon) is not shaped right.
Here's a page full of references that'll help you for when you resprite the Varia Suit (some of the pics are just thumbnails, click 'em for the full pictures):
http://www.smashbros.com/en_us/characters/samus.html
Here's a page full of references that'll help you for when you resprite the Varia Suit (some of the pics are just thumbnails, click 'em for the full pictures):
http://www.smashbros.com/en_us/characters/samus.html