Hi,
so if is your question the darker image, it can be caused by GAMMA, or different light settings than in Cinema render.
If you ask about blurred textures, it's caused probably by, that you use VERY small textures because of Minecraft look

- FurryBall interpolate those small textures.
So resample your textures in Photoshop to 2K for example ant NOT use any interpolation. So you will have this boxy textures in 2K and it will look fine in FurryBall.