Nice work :D Your BG's always impress.
The animated one reminds me of the cars you sometime see in the BG of animations.

Thank you both Guys :)

You gotta work on your perspective. The railing behind the train is under the tunnel. It looks ew :(

The image looks extremely flat, which is a common error with overusing flat textures in Flash. Try placing them over gradient and shaded objects with the overlay/add blending tools. Never use just textures on their own, because this issue is always bound to happen. Even a few of them can ruin an entire image.

Also, plan out a light source and make sure it has an impact on everything.

Quote from Charry

The image looks extremely flat, which is a common error with overusing flat textures in Flash. Try placing them over gradient and shaded objects with the overlay/add blending tools. Never use just textures on their own, because this issue is always bound to happen. Even a few of them can ruin an entire image.

Also, plan out a light source and make sure it has an impact on everything.

nice, but yeah what she said. It's a problem alot of people come by when using textures in flash.

Well، I mostly agree on what Arch Said, There's A very big lack of perspective, I've notice it even before coloring it, and I knew It'll Look Bad, So I didn't bother to fix it, cause I wasn't Comfortable by the time I was making it, So I had to accept any result, just To put that train on a proper Background So I animate it, as I didn't have a clear Idea On how bridges and stuff works, In other words, I had to improvise And @Present something while I was able to !
For using textures, I don't find The Bad at all, I really wasn't satisfied with one big Grey wall, cause it looks So Simple and not enjoyable
As I didn't Over use them,