For scale, maybe find a free model of Kratos or Atrius and throw them in there, in front of the door? I'm also having trouble reading the material of the crystal behind the door. Keep up the great work!
I've spent some time improving the materials for the rocks and roots, added a top moss shader and a cool GOW inspired energy cracks effect to the roots to spice things up. Still have to work on the foliage, lighting, crystal and then I can move on to small/medium props for storytelling!
--Update-- I've continued relighting the scene. Added in the chains holding up the platform. Textured the ornaments hanging from the platform. Textured the Gate. Added Crystals (need to mask out color). Ramped up the foliage to make it look more like it was partly submerged for a long time. Tested out different shots for…