UPDATED: After nearly two years, C-chan's picture has been finished. ^^
Aside from some extremely minor touchups to Windows 95 OSR 2.5-tan, I also added her older sister (and mentor) Windows 95 OSR 2.1-tan, originally created by:

:iconkattlanna:

And I also added a new background with viable light sources, although very different from what I originally intended. ^^'

Whereas OSR 2.5-tan wields a jutte for self defence, her system [fitting to her hermit-like nature] prefers the ranged attacks from her daikyū, which she constructed herself out of a resilient metal alloy and with the ability to collapse into a more portable size.

Little can be said about the two sisters, other than that the two are one of the few rare Windows-tans that have willingly chosen to live on their own, outside their family's sphere of influence [and protection]. But while OSR 2.5-tan may occasionally return home (and cause mischief, especially towards her unknowing rival, Windows 98-tan), OSR 2.1-tan has no intention of ever returning and lives in an extremely remote location barely-accessible through snail mail.

Much to the chagrin of their conservative older sister Windows 95-tan, OSR 2.1-tan and 2.5-tan have spent far more years amidst the company of Linux-tans, vintage-tans, CIOST members and other fellow Wanderers, and are not adverse to helping them out whenever possible. Regardless of the impact this has on their family....