I am trying your Mod at the moment and it looks shiny (within the possible parameters of the game engine). Thank you.
A few suggestions for your next version:
[*]new Natural Resource Bauxite
[*]Aluminium to become a semi product, deprecated as natural resource.
[*]new semi product recipe: Bauxite->Aluminium
[*]new semi product Sand
[*]new semi product recipe: Silica->Sand
[*]new semi product recipe: Bauxite+Sand->Cement
[*]modify product recipe: Cement+Paper -> Cement Pack
[*]modify product recipe: Gravel+Cement+Water -> Concrete Bock
[*]Steel and Pipes images are too similar. Make Steel image look more like this:

I wonder if is possible to modify your concept of energy a bit. Did you try to have two recipes for Electricity, as in NatGas+Water+Turbine->Electricity & Coal+Water+Turbine->Electricity, would that work within the same mod? If that would work we could have Electricity as input to some of the recipes, as for example in making Aluminium, which consumes lot of it.
