Is it possible to add your own character portrait? | Frequently asked questions Shadowrun: Hong Kong Guide

Yes, it is. And it is neither difficult nor time consuming. You simply need to access the game folder and find the "portraits" subfolder, which includes portraits for all the characters. You simply need to swap the file, while retaining the name and the parameters of the picture itself (extension and resolution). The default path is:

C:\Program Files (x86)\Steam\steamapps\common\Shadowrun Hong Kong\SRHK_Data\StreamingAssets\ContentPacks\HongKong\art\portraits