Douglas Fir Large- this Blended Background should be used with my Douglas Fir wide cover spline or these trees which make up the spline: Douglas_Fir10, Douglas_fir_14, Douglas_Fir-old1, Douglas_Fir-old2, Ponderosa_5_35m, Ponderosa_7_25m, Ponderosa_9, Redwood_50, Undergrowth_6-2, Western_Hemlock_20m, Western_Larch, Western_Red_Cedar_5. I used built in British ground textures in building the backgrounds and they should match the background pretty well. There is a tutorial on my site about how to use this Blended Background to best advantage.