Concept art "Vampire Hunter Grenade"

To practice concept skills in the photobash pipeline, I came up with a grenade concept for the Vampire Hunter. I chose the style close to the movie "Van Helsing" and to the style of the game "BloodBorn".
I thought of a mechanism of operation, simple and reliable, that could exist at that time, at the end of the 19th century. It is shaped like an hourglass. The top section contains silver powder and the bottom section contains vampire blood. The partition in the middle prevents these two materials from mixing, it is held on a metal bolt with a thin middle. When the handles are raised, the bolt is caught by the mechanism; when the handles are lowered back, the thin connection breaks when pulled upwards. The lower part of the bolt with the membrane sinks under the weight of the crumbling metal. When enough silver mixes with the blood, the vampire's blood ignites from the reaction with the metal and explodes with fire, a mist of silver dust, and sharp silver shards from the openwork structure.
Thanks for the tips and tricks, Julia Zhigadlo
https://www.artstation.com/new_asuka