Kevin Ahronson from Hampshire School of Photography shows a couple of ways to add a bit of punch to your silhouettes, using Photoshop.

Most of my tutorials are only visible to students and members of the HSP online Photography Academy (at the time of writing, the Academy is still going through beta-testing, prior to being opened to the public)

I also teach regularly on The Photography Teacher: https://phototeacher.blog

The HSP website is: https://www.hampshirephotoschool.com