Have been doing a bit more experimentation with rawtherapee - it's possible to build custom profiles and up till now I've mainly just used bundled profiles. For example it's possible to create a "unprocessed" profile and then use that as a starting point rather than starting with a bundled profile and then tweaking that, and I think I prefer this. I have set up a "size" profile to resize within 1280 x 1024 dimensions and then I can simply "add" this profile to an existing processed image. 
For this image the only adjustments were:
- exposure compensation +0.43
- contrast +17
- resize to 1280 x 1024 boundaries