Thanks for your review! I just got the 12 Russian Eternal colors and try them one by one...
The color of the Tolstoy is interesting; I would descibe it as "neon-lobster". So far I tried it only in a Montblanc Bohème Big Size with a medium nib and it wrote pretty dry and skipped badly. So the writing sample looked like I wrote with a dried out thinn highlighter

I need to give it a try in a different pen.
The chemical scent reminds me somewhat of organic solvents (???) but I don't believe that such solvents are used in fountain pen inks! ?!
Michael