Finally started learning UE4, put this together this evening, hopefully over the week I'll be able to make more progress and update soon, but moving countries the end of next week, so really depends on how much packing I get done between now and then.
The tree, rock and fern used are from the Kite Demo, The ground texture I downloaded from Texture Haven. The bridge will be the the only thing I model in this scene as I want to concentrate more on working within UE4, This is my first wip shot just getting a feel for the lighting and mood.

Some guideline images for the overall mood

any and all crits welcome :-)
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The other thing is that the bridge has an obviously repeating texture near the top, the two bricks that stick out specifically.
Going forward it will be important for the bridge to be well constructed.