[Zingtober] Rust -- Day 23 --Rusty capture device

Hello everyone in holozing community, how are you all today? i hope everyone is having a great day.
today is day 23rd of inktober with the prompt 'rust'.
i am not happy with this prompt, either i draw something really complex or really simple.
so i chose to draw simple.
two holozing capture device but they are so old that it got rusty.
let me know your thoughts.

here are some process shots: