I've had some of the copper worked to basic shape for awhile now & will be adding a bit at a time. Copper is a pretty unique metal in that what you think you created isn't exactly what you get. This is largely due to ageing of the surface actually changes from bright raw "cooper" color to form a multi-color "patina" that is very subtle & subdued not shiny & bright, but diversely & intricately patterned. It almost forms into a texture which is seen but can't be felt. All this is an ongoing process which actually never ends...the metal in this narrow construct could be viewed as living! Of course artist have recognized this for thousands of years, but in this tech crazed generation it's too often over looked.
Using this material in a moto-bike presents a visual problem especially when more than a few parts of larger size are grouped in proximity. Especially in photo viewing, but even on location. Subtle detail vanishes in the brilliance of raw copper. A heavily "hammered" sheet of copper appears smooth as a mirror in many lighting conditions. Patina will change this in due course, but while fabricating a piece or viewing it mounted one just has to imagine what it will look like 5 years from the day.
I've run into this in the past and have "chemically aged" for a patina effect & it helps a great deal, but to me it looks un-natural because it is! I may age the larger pieces of copper to help decide if copper is what I want in that location & later polish it off and allow time to form it's own work on the metal canvas, it's just more natural!
If copper doesn't work in a certain spot it will be discarded to the scrap bin. It's just difficult to know when it sparkles like chrome & hides it's beauty behind the gaudy glitz of color. Rick C.