I am still working on the Castle in my other WIP, but as always have a few other things on the go. This is a very early thumbnail.
In case it is not clear what is going on yet, you are looking at a very deep, pretty wide, chasm. You can just see the strip of light at the top. There are towns built on the massive tree roots that drop down the chasm walls. The roots have been used to bridge the chasm in a couple of places and the towns are built out on these. In the foreground there are some people walking down the staircase. There are nets in the distance - they catch things that fall from the cities and higher up in the chasm.
The concept is from a book by Sherri S Tepper - The Mavin Manyshaped trilogy - and I have wanted to draw this scene for some time.
There are some other elements I mean to add, and I have not added much lighting yet at all. There will be light sources other than the top of the chasm.
My question for the moment is: Does the forced perspective work? I've left the perspective lines over the image, and you can see that I have bent the foreground out a little so there will be the opportunity to add more detail there and have some focus on the people. My worry at this early stage is that we are looking across at the people, and up at the chasm at the same time. Can I get away with a sort of fish eye lens effect (is that the right term)? I want the viewers eye to be drawn from the people up to the end of the chasm and for the extreme depth to be apparent.