Hello ,
It's a little difficult to tell exactly what might be going on using that picture alone.
How exactly did you set up your image to achieve that result? Was this an exported render or a screenshot of your Twinmotion viewport? Did you use Path Tracer for this image? What quality settings did you use in the viewport? Which tree assets are you using? Did you modify any camera settings, and if so, which ones?
This information can help me figure out what may be happening. Additionally, if you can share your Twinmotion file, that would be very helpful.
Best,
Raghib