the top edge does curl back a little, it needs the "wavy marks" from the smithing process (cant remember real term) and yes, the handle is way to short. it should be at least hand and a half, or two hand
yeah, i just couldnt make it better, but it is more likely to be a tanto too, that or wakizashi
D-A--M-N Uncle_Alik sure know your weaaponry!
Agreed with termonuclear, but katana also has longer ( maybe about three times yours) hilp with smaller guard and less angled blade's upper edge. This is more likely to be ninjato or a long vakizasi.
i cant make a curved one well, but i know, i have
not to be negative but katana's are curved a bit