Each month Limited Runs gives a free digi to use in the challenge. If you make a project with the image you will receive the next month's free.
If you haven't already joined in you can buy this month's image here for $1 and make a project and then you will receive next month's free or up until 29 May you can download him from the comments under the Facebook challenge post.
I have layered Limited Runs digi stamp Steampunk bug onto Steampunk paper from Bearly Mine Designs. Added elements from Julia Spiri Steampunk Clip art.