if it’s only for general inspiration, yes, and as long as it’s not to say “i want a jacket/necklace etc like this one. because i sell my designs i can’t speak for how every owner would feel about it. especially where in the case of custom designs some owners may ask for certain design elements for sensitive and personal reasons. treat it like someone’s tattoo, basically. the gist of it is fine. just don’t copy and don’t pick out specific parts to copy.