Here`s what I`d do if I were gonna try it.
Completely remove the finnish on the natural one with water based finnish stripper, I use a product called 5F5 availible at paint supply stores.
Completely sandseal it four times with 12 hours or more in between coasts.
Let that cure for two days.
While doing the first step, use time in between to get a computer match for the red colored stain, most paint supplyers have one.
Sand the sandsealed drum with 1600 grit sandpaper to get a scorned on type sheen to the surface. (takes a long time and don`t change the sandpaper often)
Apply the red stain on in one even coat.
While still wet, I`d take my finger and useing the photo,...swirl into the wet stain the pattern of light and dark spots, wipe`n it off my fingers with a rag so it don`t cause the stain to run. Let that dry for 12 or more hours.
Next I would soak a rag in FLAT black paint, with gloves on, ring it out super well and even spin it to get it damp dry. Then I would wipe on the black in areas here and there to try and copy the pattern on the other drum. Nothing real dark, just try`n to shadow. A soot like look.
Let that dry for 12 or more hours.
If you`re happy with it,..hang the drum from a round object larger than the drum with the hole in the middle and line going through the middle of the drum so nothing is in the way of spraying on the clear coats. Spray`n is an art,..keep the sprayer away from the drum and always moveing. NEVER EVA put alot on in one coat. Your first coat should look like sh*t and have alot of dull and missed spots. Your second coat looks a little better and so on. By the time you reach ten coats, it will look great.
Practice on scrap wood to do the stainning and clear coating first,..make your mistakes there and not on the drum !!
I have convidence in you takeing your time and not being afraid to try it !!
If all else fails,...use the rest of the 5F5 and start over !! You won`t gain expierience by not doing.