This was a late birthday present for ~Vulecrise - couldn't resist adapting the pattern previously used to make him, although had to improvise for the hat! Adapted from this pattern: [link] except with removable jacket (using Tenth Doctor's coat as a basis for it) and added hat which I then embroidered over afterwards!
**Photo (c) ~aragornsgirl333, do not use in any way without permission. This image has been submitted to deviantART ONLY.**
I'm afraid I'm still at the stage of adapting other people's patterns, with a little improvisation, such as with the hat, so don't really have much help to offer on the matter - I guess looking at how clothes patterns for regular clothes would help to then adapt them (The jacket is made from a flat piece which has many similarities to the pattern I'm using to sew a jacket for myself at the moment and sleeves, which are essentially a tube made to fit around the doll's arm.)