The motif of this work is a children's story of Andersen, nightingale, for SF fantasy game.
A siege gun which is used at the Middle Ages War is designed at different way.
The concept of this weapon in this story is to break down the enemy's castle
as a sonic wave attack using high-frequency.
It is paradoxical design against that nightingale's singing is considered as a beautiful sound.
My idea about the battle is from a few recent SF animation.
The upside wings are used for moving this weapon.
The downside cylinder is kind og barrel such as sound woofer.
This image is a state of landing, but the barrel face to the front in a state of battle.
If you see in detail, you could find out that the machine parts except
for wings have the appearance of the pistol.
It's for huge artificiality bronze giant soldiers to use this as the pistol.
That is, it is a form that both aerial attack and land attack are possible.