Yeah, that cliff is aweful, the brush is much longer then it is tall, meaning the points of the triangles are very stretched.

Any good ideas for brush work? I can't think of any places now I've opened the map...

For a first map it looks pretty good, In the outside pic, on the right
the displacements seem a little "out of tune" make it more rounded on
the right where the texture is streched.

I don't actually know the best place to put cube maps. I've read lots
of tuts about how to raise the cubemaps, but nothing saying where in
the map they need to be.

I have some ideas to liven up the brush work though.... Thanks!

You've got some major lighting issues in that 3rd picture. Make sure to
use cubemaps and have them placed in the correct locations.

I think your rooms look an ok size, but you need to make them a bit
less boxy wher possible. Follow DrGlass's advice - columns, pillars,
support beams (on that note, the ones you have in the third screenshot
are lit horribly, might be a cubemap related issue), alcoves - all of
these things help make rooms more interesting. If we take the second
picture, you have far more potential to make that "threshold" type
thing more interesting, by perhaps leaving a section of wall above the
opening, and giving a metal or wooden trim that is a little thinner
than the wall itself perhaps. The outdoors area could use a less flat
ceiling line, and that will make it look far more realistic.

Good effort though, keep it up. Looking nice enough for a first effort :smile:

Anywhere in particular? The rooms don't seem that big to me, except the
main storage one, and I can't think how to divide that up....

Thanks!

Edit: Heres a picture of the outside

just remeber to focus on detail brush work. Colloms, supports,
etc. Your rooms are flat and over sized, you need the brush work
to break up the large spaces and create some light contrast.

Thanks, I have uploaded some onto snark pit, I don't know why they aren't showing here... When I get my act together I'm going to host some on Imgshack and put them up.

Get some screenshots up - people are far more likely to give you feedback if you do