Ok, first let me say it looks quite good for an engine with a quite hard shape.
Some comments;
- Although the pictures are not very clear about this, the engine is kinda blue, AFAIK.
- The engine is too high, I'd suggest decreasing the height with 1 pixel in | / and \ view.
- The wheels of the engine (and everything else under the engine) should have some different color than the rest of the engine.
- The headlights needs more variations. We needs sprites with only the yellow headlight on (don't forget the third headlight above the windows) and sprites with only the red headlights on.
- _ view needs more room for the wheels (2 pixels high) and anything else under the engine.
- _ view needs more room for the roof (4 pixels high).
- The roofs are not correctly shaded.
- The pantographs are wrong; at least one of them should be up, the other down, the direction of the pantographs is a bit hard to see, but I think it's _<____>_ , if you understand what I mean.
- There's some white text at the front, which you made yellow.
- The roof is not correctly shaped in / and \ view, at the border of the front (just slightly above the windows).
- You wouldn't be able to see any headlights in _ view.
- | view needs to be longer (longer roof)
That's it for now. Keep up the good work! Don't be scared by the amount of comments I have.
