Apparently you need me to explain exactly how you detailing is bad so here goes:
Align the dark bit of the texture, and only one set of vents. Those models look terrible stacked like that.
http://i.imgur.com/E2C3JVI.jpg
Fix door texture, rotate printer so it faces away from wall.
http://i.imgur.com/ZtfB47Q.jpg
These lights look terrible, this room ends up being a bit too bright, they look bad, and the particles plus the light color makes the room yellowish.
http://i.imgur.com/jIb0Hnt.jpg
The lighting on these crates versus the stuff inside/behind looks awful.
http://i.imgur.com/yZdnJ6v.jpg
This texture looks terrible aligned like this. Also the roof texture looks wrong (with metal ceiling), and those lights belong inside not outside.
http://i.imgur.com/cu4We3n.jpg
These textures are misaligned.
http://i.imgur.com/sjuAnMK.jpg
The textures on the stair faces look bad. The wall textures don't match the cleanliness of the floor texture. The computers on the back right need a backing. The vent boxes are just... unusual...
http://i.imgur.com/fhFX1TY.jpg
Doors need trims (not just border textures).
http://i.imgur.com/tQYB6it.jpg
The metal roof goes through the side wall.
http://i.imgur.com/9WBrtMT.jpg
Maximum of two of those fat pipes next to each other to look not terrible. Also put a bit of space between them. Wood door in brick texture? Seems wrong. Also wood trim on the outside of brick building is wrong. Also little pipes sticking through floor near the door.
http://i.imgur.com/YpgZMhN.jpg
Use a different texture for the catwalk sidings and the chickewire trim.
http://i.imgur.com/yqE0D3L.jpg
Two blue overlays on red side? WRONG!
http://i.imgur.com/adqKhHI.jpg
Different pipe colors.
http://i.imgur.com/jI8W6mo.jpg
Reduce the map file size by replacing the dev textures (and other out of map textures) with nodraw.
http://i.imgur.com/zeShD33.jpg
This wood thing straightup looks terrible.
http://i.imgur.com/zW4dou1.jpg
Align your textures. God damn.
http://i.imgur.com/a8F6Epk.jpg
Z-fighting.
http://i.imgur.com/Nmu0x2f.jpg
This texture looks terrible, is super repetitive and looks like 2 different parts which shouldn't be mixed.
http://i.imgur.com/856UPOf.jpg
This trim looks terrible, so do the 4 vents so lose together. Also the strange and bizarre line of the transition.
http://i.imgur.com/nRvbi7u.jpg
This fence and its shadow. Hyce please.
http://i.imgur.com/s6brVhZ.jpg
Align door with wall.
http://i.imgur.com/cl3NgOq.jpg
Put a metal trim around these computers.
http://i.imgur.com/aHUoa45.jpg
Forward spawns on most maps are more visually interesting than this.
http://i.imgur.com/qSIA5sT.jpg
Align light models with ceiling, use less yellow particles, and put some more appropriate detailing in this room (the wood makes no sense and it's otherwise very plain.
http://i.imgur.com/EsZnALd.jpg
Fix door model alignment.
http://i.imgur.com/FIYzOYx.jpg
These side textures make no sense, wood with concrete, wrong metal texture (beam? really???).
http://i.imgur.com/wceodwv.jpg
Did they cast the metal pipe inside the concrete?
http://i.imgur.com/gAQWy82.jpg
3D skybox casting shadows onto world.
http://i.imgur.com/Mdw26Jx.jpg
Door trim on these doors, too.
http://i.imgur.com/3fh9Uy0.jpg
Different texture on those bands IMO, also bands on the bits facing the other direction.
http://i.imgur.com/4rcz4jC.jpg
DEV TEXTURES???!!!
http://i.imgur.com/ZalFJzZ.jpg
Too many windows.
http://i.imgur.com/3dqaLQN.jpg
Different texture for the catwalk side.
http://i.imgur.com/Ba4URjO.jpg
Light intersects with pipe.
http://i.imgur.com/vzzdSoR.jpg
That pipe on the right, and the light intersects with the pipes on the left.
http://i.imgur.com/VdIqCMF.jpg
Wood doesn't fit here.
http://i.imgur.com/zcgurof.jpg
The metal plates intersect. Also those models are notorious for causing lighting problems.
http://i.imgur.com/wVBaZR0.jpg
The floor texture looks terrible.
http://i.imgur.com/eNwO6Tr.jpg
Z-fighting in 3D skybox.
http://i.imgur.com/coAAM9n.jpg
This texture on the catwalk sides looks wrong.
http://i.imgur.com/yEMMqsn.jpg
This box goes through the floor.
http://i.imgur.com/WiQk65B.jpg
Wood ceiling? Come on, now.
http://i.imgur.com/O4K1VLj.jpg
Too red for blu side.
http://i.imgur.com/I1BFqJU.jpg
Don't even get me started on these trains and the hazard strips (same with the strips on 2nd).
http://i.imgur.com/J2ec5Gk.jpg
Mis-aligned textures.
http://i.imgur.com/WK6nkim.jpg
What is with this sloping wall? It makes no sense.
http://i.imgur.com/v2aSsKw.jpg
This texture is waaaaay too red for blu side.
http://i.imgur.com/gk5rbCc.jpg
Z-fighting with the power line.
http://i.imgur.com/8pmR0Yk.jpg
This wood texture is too red for blu side.
http://i.imgur.com/fjXhtpc.jpg
Red on blu side more.
http://i.imgur.com/RkiRfVx.jpg
Misplaced metal texture.
http://i.imgur.com/Y2Td6TQ.jpg
Red metal texture (looks bad anyways), and red looking wood.
http://i.imgur.com/rAHXZXn.jpg
Add trim to stair sides.
http://i.imgur.com/ztdCecf.jpg
Why is this light so bright for being outside. Also bad scaling on that sign.
http://i.imgur.com/GvsLFVB.jpg
See that nice trim on the top of blu side?
http://i.imgur.com/15PitwG.jpg
Add something like that on red side.
http://i.imgur.com/dCJ8zAG.jpg
AND FOR GOD'S SAKE USE A FULL COMPILE!