See my Fujifilm GFX wish list.
This example looks at image quality with the GF 110mm f/2 at late dusk, particularly very fine detail in wire and stone and roof tiles at distance. It differs from Oak Tree View to Tower in that it is more distant, and includes foreground elements to assess bokeh and color correction as well as offering a smaller reproduction scale to see how well the very finest details on the tower resolve.
Includes images up to full resolution from f/2 - f/8.
On an optical basis, I have no hesitation in giving my highest recommendation to the about $2800 Fujifilm GF 110mm f/2—this is the telephoto lens that anchors the system. For most usage the GF 110mm f/2 should be preferred to the GF 120mm f/4 for the extra two stops of light and the smaller/lighter form factor. Plus, so far the 110mm f/2 has shown itself to have much more accurate autofocus with only a trace of focus instability.