What you had was a pomegranate cocktail. There are only three ingredients in a martini: gin, dry vermouth, and olives OR a twist.
Ha! I won't rouse the gin vs vodka martini debate (though I'm on team vodka

), but you forgot a crucial (if technically "optional") component: a little bit of brine.
I like my martinis dirty.
First of all...props
I'm willing to accept vodka as a variant, but the original was gin and as far as I am concerned, the only 'true' martini. And in the original recipe, the proportions included much more vermouth than is used today. It was a much smaller drink (usually about 3oz vs today's vats of booze) and the proportions were 1 part vermouth to 3 parts gin. These days, someone asks for an actual martini (instead of those super sweet chocolate or fruit cocktails that pass for 'martinis' these days) and they want you to essentially just show the bottle of vermouth to the glass, then put it away and pour straight gin (or vodka) into a glass made for a giant.
When I was a bartender, one technique for a "dry martini" was to chill the glass, then dump the ice, put in a splash of vermouth, swish it to coat the glass, then dump the excess. Then pour the shaken gin into the glass. Otherwise, a regular one was simply a splash - no more - of vermouth into the shaker with the gin.
I like the first few sips of a dirty martini, but then the brine gets to be a bit much. For me, "dirty" means not shaking the brine off the olives before putting them into the drink. That's enough brine for me. And like I said, I recognize vodka as an acceptable variant, but the other ingredients need to stay the same. Stray from them and it's no longer a martini. Hell, even substituting a cocktail onion turns it into a Gibson, fer cryin' out loud

I just don't drink vodka martinis because I'd rather just have my vodka straight and chilled or on the rocks.
Damn. I want a martini now