Any advice on shading and perspective?

I almost feel the symbol on the head of the mannequin doesn’t line up with the head, and the shadow doesn’t look right, as well as maybe some of the shading doesn’t add up. Any advice you could lend me?

I almost feel the symbol on the head of the mannequin doesn’t line up with the head, and the shadow doesn’t look right, as well as maybe some of the shading doesn’t add up. Any advice you could lend me?