Oookay, had a look.
Initial thoughts are that it's creative and well thought out, although there are some problems. I'll go over them step by step.
The very first is the chemical accident, which is strange because Iromakuanhe biotechnology is literally abundant and ubiquitous enough that the proceedures to restore or even upgrade his body would have been standard and almost trivial- and given the circumstances actually entirely free. An Iromakuanhe with unconventional gender expression isn't a bother, though the seeming permanency of the injuries is problematic given that there are dozens of ways he could have been returned to normal.
I feel slightly bad for telling you the crux of the character's life could have easily been fixed- the paralysis, the chemical burns, all would have been provided for him ostensibly for free.
The other thing is this discussion of the body type, which I'd like to hear more about.
Besides that, there might be problems with Van's body type if it's incompatible with Solanii technologies and requiring special medical knowledge. Iromakuanhe medical officers are trained in dealing with a wide variety of augmentations, but his design being entirely new and proprietary problematizes that.