Other than the above suggestions, I love the colors, including the green!
Since Seattle is called the Emerald City, I hope you can incorporate an emerald green, becausue it really makes burgundy *pop*.
The luxurious feel is not my preference, when I see something that screams "expensive" I run. (Home interiors are very different). As a vaper I want to quit smoking and SAVE MONEY.
Seattle is legendary for being an "eclectic" city, brimming with art, music, etc. and vapers tend to be modern, creative types of people anyway. That is who you are appealing to, not blue-bloods with old fashioned traditional values.
I like a sign that is playful, and the colors in yours is perfect...get some emerald green in there.
Seattle is known for it's skyline, mountains in background, and space needle. Would be neat if you could put space needle next to ego with clearo and somehow imply 'similarity", like vaping is to Seattle what space needle is to Seattle, a 'part' of the culture. Or ecig on top of the space needle or something. Or have moutain in background "spouting" your flavorings, etc. I am not good with design, just concepts, so link up vaping to the environment there somehow, show how vaping and seattle just "go together".