Metal Can

And again, I used the unbelivable texturecollection from 3DTOTAL.
From the very original 'rusted metal section' I pick one image, and a bump map. Everything is "under your cursor". One click and you've got, all textures you need.
In Photoshop I composed my metal texture with some dirt masks, and my own image. I create a logo for an imaginary company. ("For The Birds") (hmmm???)
Using diferent layers and specially the 'eraser' tool... I made this:

Seeds

Standard 'Phong' shader plus a 'Noise' map with very small value as the bumpmap.

Spiderweb

After applying a proper 'UVW Mapping' to the obiects I opend Photoshop.
In Photoshop I created an image using the standard 'Line Tool'. I simply painted a spider web and convert my image from RGB colours into Grayscale. Also I used the 'Brightness/Contrast' tool to increase a little contrast. Then I saved my first image (black color lines on white background). All I needed was an 'opacity' map. So, I inverted the colours (Ctrl-I) and saved again as my new opacity map-image (white coloured lines on black background).

Metal Elements

Nothing new - all the same.
All those metal elements (metal wire, screws, hook, etc.) are very small objects, so I've just resize the 'metal textures' from the CDs.

Tree Shadow

Once again I used "TOTAL TEXTURES CDs", this time I picked a 'shadow map' texture. Created a standard 'phong' shader, as diffusemap I used my 'shadow map'. I changed the 'Cropping/Placement' like on the picture, and used a low value of 'Blur', because I needed my bitmap to be as sharp as possible.

Window Frame

Nothing special. Simple texture of wood with a coat of white paint...
Also, I used 'bump map' as 'bitmap'. I increased the tiling a little and moved the mapping plane (enter in Sub-Editing
in 'UVW-Mapping' - 'mapping-plane'=GIZMO) just to achive a good looking "dirt and scratch"-placement.

Window Pane

...I think that you will find the most important information in this picture: