Perspective can be an issue, try to work on it more, for
now, try to grind the one point perspective only and if
you have the will, try out some 3D software, it will
help you understand things much more clearer. But I like
how you are improving with your pencil figures and shading.
Rendering different materials with pencils can be tricky, so
it requires quite of a training. My favorite pose is that
female on the cross, I like her way too much. And you just
watch how you solved her left arm, tied to the cross, it's
fantastic, few lines and so much readability.
The digitally painted female is looking nice, however I think
that her body is a bit longer than it should be. I would advice
to work greyscale digitally for a while, so you could get a hang
of values. The book render in the end is very cool, I like the
old 'Bible' feeling within. So you are definitely a hard worker,
and success will come to those who work hard. Keep on
doing what you are doing and never give up.