Question

Does the “luk” space suit in Seveneves make sense?

Answer 1

I'd have to pull out my copy of the book to include the relevant descriptions, but I don't have it on me at the moment.

I don't remember them including a large booster on either end of the arklets, since one end was a docking port and the other end had a window. The thrusters were part of a ring structure extended away from the edges of the hard arklet shell, that also supported the pressurized fabric shell in which they were meant to grow plants.

I think I've seen a rendering of Izzy with all the modifications made to it after the hard rain started.

Found it (Mild Spoilers for those in the process of reading) I'm not sure if it's fan made, official or the weird in-between that happens when a publisher commissions third party art, though it seems to come from a professional company at least.