Very nice Sidran. The top one really conveys a sense of linear movement. Looks like it wants to jump out of your hand and stab things. The bottom piece has a good line flow. A solid Persian feel to it.
The volley gun is an actual weapon. I have references to a model that had two groups of seven barrels. You could fire all fourteen at once if you wanted. Though the kick might break your shoulder...
The top is a simple longsword with a Celtic style.
The next is a heavy scimitar.
The second from the bottom is a combination Falchion and machete.
The bottom is an engineering style sword. Would be good for archers or crossbowmen that need a back-up weapon that is also a tool. The back of the sword is saw toothed for cutting wood.