Watch the following video of a catwalk and describe the clothes which the models are wearing. Don't forget to use adjectives to comment on the patterns, materials and style.
Record yourself doing this task using a tool like Soundcloud and upload your recording to the blog. Here you are a tutorial to know how to use it Soundcloud tutorial (in Spanish). If you prefer, you can use Vocaroo, here you are the tutorial to know how to embed your audio in Blogger.