Looks neat! Bake looks it's without errors in there.
Only things I got in mind are about the design. First, the handle looks very short (at least from the view angle of your render). Not much space for a hand to hold it comfortably. It looks like it's just barely long enough to hold on to which brings to another thing. The decoration bits around the handle look brutal for anyone who would wield that. Second, which is a minor crit and a personal preference really. The hammer part itself would look more interesting if the hitting end was cylindrical instead of a box.
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Only things I got in mind are about the design. First, the handle looks very short (at least from the view angle of your render). Not much space for a hand to hold it comfortably. It looks like it's just barely long enough to hold on to which brings to another thing. The decoration bits around the handle look brutal for anyone who would wield that. Second, which is a minor crit and a personal preference really. The hammer part itself would look more interesting if the hitting end was cylindrical instead of a box.