Like mentioned in bug 33234 it is easy for the a potential upload to find the wizard, but often he won't be able to include his picture to the article.
I suggested at different approach here: http://commons.wikimedia.org/w/index.php?title=Commons%3AVillage_pump&diff=92525244&oldid=92523839
What about some additional get parameters like project, language and page/article when you link to upload wizard from an article?
This would offer a lot of potential workflow improvement:
- You could use those parameters to create a link to the article the user called upload wizard from. You could write: "Now insert [[:File:.....|thumb|....]] to this article.
- You could even link to editing the article and inserting the file source code (maybe by asking him the paragraph he wants to insert the image at?)
A different handling for infoboxes would be great, since there are a lot of infoboxes, that use the image as parameter.