You've made your buy, now you have to lie in it, hah, hah.
Like any fin-shaped tent, FS or not, above timberline, in the wind, you will need four side-guys, two in front and two in back from the guy loops, one of which is clearly shown in your photo. If the stakes for the guys are well secured, you should be fine.
One possible niggle is a direct connection of the side-guys not just to the fly, but also to the poles underneath it. Some of the wedge domes don't have this, and that could be a problem. Velcro loops around the poles could be a fix, but don't know if I'd want to trust a little Velcro loop in a gale.
Can't tell from your photos how much rain cover you have over the door. One poster alluded to that issue, as Roger Caffin often does. Not being able to set up the tent in a downpour without getting the bathtub floor wet can be an arguable trade-off; but not having a dry entry and exit in a downpour can be a deal breaker.
Love the light emerald color on the fly. If only BSI sold its fabrics to MYOGers.
After you've used it in foul weather, you might have some good insights about this design to possibly share with us.