Tilda Challenge 38 & 39

When I looked at the Tilda Challenge site first thing this morning, it was sketch 38, but by the time I came to upload my contribtution we were on to Challenge 39... spookily my card fits both sets of criteria... last week's sketch this week's focus - metal. The photo is a little pale and interesting, but maybe you can get the idea.

I would be grateful for your comments, as ever.