If I may, I’d like to ask you to take the time to rationally explain us all exactly why and how you feel that the red, purple or green facial tattoos already in game are waaaaay more inspiring than a blue or an orange one could ever be. :-D
Markings customization was finally uncoupled from hair color last week (after I posted my mockups actually, so I already got a huge part of what I was asking/hoping for) and now they are separated there is no reason why they couldn’t have more colors considering that the recolor of such a small texture probably takes about 10 seconds. In fact, they could very easily add new shapes also.
Of course, you might have meant that you would want the facial markings totally removed because they are not inspiring to you overall...
But that makes no sense, as you can always play a night elf female without markings?
IMHO more options the better. Take the silver options for blood elf jewelry for example. I don’t like the silver color for a blood elf, and I am sure I won’t use it. In fact, I even find it somewhat breaks the default racial appearance which is about gold and red (just think of the heritage set). Yet some other player might find it the best match to their armor, so I still think it’s cool that there is such option regardless of the fact that I don’t personally care for it, and wouldn’t have asked for it.
TLDR: many new customization features are just extra options: as such, they do not always need to be astonishing or inspiring to be appreciated by someone, and therefore even a tiny addition can be a perk worth of adding when it is extremely easy to do so.
But sure, haters gotta hate, so you are totally free to disapprove of a small texture recolor if that makes you feel witty and cool. :-)
Personally, I am pretty confident all sorts of colors and shapes could find happy users in-game if they were added: