Going from this:

to this:

1. Duplicate your base and set it to ‘Screen’ at 100% opacity.
2. Create three new layers filled with 1e0725. Set the first two to ‘Screen’ and the last to ‘Subtract’ at 100%.
3. Create another new layer filled with 706c48. Set it to ‘Multiply’ at 60%.
4. Create a new layer filled with dee1db. Set it to ‘Overlay’ at 100%.
5. Merge your layers.
6. Duplicate your base and go Colours>Filter Pack.
Midtones: Saturation, click ‘More Sat’ once
Value, click ‘Darker’ once
7. Set this layer to ‘Hard light’ at 100%.
8. Duplicate your base layer again and bring it to the top. Set it to ‘Colour’ at 35%.
*Note: this one’s a little more touchy than most of my other tutorials, and your image may turn out a little too yellowy. If this is the case, either lower the opacity in step 7, or raise it in 8.
Other example:

to:

Please comment if you try!