Model is almost black at some angles. I've been trying to create a simply low-poly cat model, but I've run into an issue. When I try to rotate around my model, it appears black at some angles, which makes modelling difficult. Here are screenshots to show what I mean:

Cat from diagonal angle. The whole body of the cat is black. This also occurs from other angles, this is just one example.


Cat from side view. Faces are clear, but the cats feet appear to be a brighter shade of grey than the rest its body.


I'm fairly new to Blender so maybe I'm making a rookie mistake, I'm not sure. I've tried adding in lighting it doesn't seem to have an effect on the model, only when I set the scene to "Render" mode. Any help would be appreciated!
Your normals are flipped, which essentially means your mesh is inside out! In edit mode, go to Mesh > Normals and flip normals. Recalculate outside sometimes works better if you have some right and some wrong.