[ludi]

Multi light would solving this issue.... but my machine isn't strong enough for that.

[JTB]

Did you save mxi?
Did you try any corrections with brightness and contrast?
Maybe you will see some improvement.

[tom]

I don't know what you mean by dark actually, but the lighting is quite decent I think.

[Hys]

hello there~

Nice render, i like it !! i don't think it is too dark, just the stair ramp is a bit odd.