Back home for a few minutes and just want to throw out a few thoughts I had when I made that comment on your earlier thread.
To my eye, both your cropped pixie AND your full skirt/tucked shirt outfit were equally lovely, but they didn't quite come together for me. Theoretically a pixie is a pixie, but, in reality, it's way more complicated. Annie Lennox's pixie is modern, sculptural, and edgy; Audrey's pixie is delicate, cute, and very feminine. Part of the difference is facial structure, but I suspect personality (and maybe Kibbe type) are also important.
All of this is just a roundabout way of trying to say I think you have choices here. Do you want to keep your current, ultra-cropped, grey pixie and explore the Annie Lennox-ish side of your style by playing with more sculptural looks like those color blocking ones of yours I posted? Or, would you prefer to wait it out until your cut grows out a bit so you can go for Audrey's feminine, classic-modern look like you've shown us in your full skirt/tucked shirt look. If the latter, I think you need to look for ways to meld the sculptural qualities of your pixie with the femininity of Audrey's girlish gamine style as an interim style.
Personally, I think the term "arty architectural" is way too broad to be useful to you because you already have a strong personal style and I'm not sure you want, or need, to copy anyone else's "look". Once you figure out where you want to push the boundries of YOUR personal style, you'll get lots of ideas from Angie and the rest of the forum on how you can explore those areas.