Wow I love all of them.
Tudor Blue looks like a really solid mid-blue. Not as saturated as Oxford and Lapis Blue, and not as nimble Washable Blue and Presidential Blue. Does it have some surprising water resistance like Washable Blue?
Blood Orange is great as well. Not a bright, bright red like the regular Diamine reds but not as dark, poor-on-cheap-paper possibly as Red Dragon and Oxblood. I've been looking for a medium red that can do notes and annotation at the same time. This might be it.
Purple Dream reminds me of Grape through a dry nib. A really good alternative to blue. Golden Honey will have limited uses but I've taken a fancy to yellow inks recently. This is a muted mango to me, quite useful as a break from all the bright sunflower yellows. It will be an excellent highlighter colour.
And now Lilac Night. It looks very much like the colour of diluted Kung Te-Cheng (one of my favourite inks ever). This will be less troublesome to use, for sure. And Espresso is the best looking brown from Diamine to me (edging Macassar which has been on and off my cart for the past few months).
I do see what the earlier comments are saying about these inks being anonymous, but the batch strikes me more as an "essential series". Weird when Diamine has like 150 different inks already, but if you someone came around looking for ink to try outside of their regular black this I would point to this batch. Ahh, but then I remember the price. The first batch of the 150th inks aren't Iroshizuku/Kobe level pricey but they are twice as expensive as the regular 30ml "refills". And with the increased popularity of Taiwan as a tourist destination I regularly have friends offering to take a sidetrip to T.Y. Lee to get inks for me (I pay them, of course) where Diamine is even cheaper. I would buy these in a heartbeat if I could find a good deal on them but right now, I'll be on my desk looking for ink mixes to copy these great colours. Thankfully, my Mv Burgundy is close enough to Burgundy Royale.