Want to be featured on 500px ISO? Every week, we’ll announce a new theme. You’ll have until next Sunday to submit your photo as an entry. You may already have an existing photo that fits the theme, or you can take this as a challenge to shoot and upload a brand new photo.

Last week, we asked you to submit images relating to the theme, Work. We have received more than 300 entries! Thanks to those who got creative and submitted their photos! Below are 30 of our favorite photo submissions of people on the job, working ’round the clock.

Browse more shots from last week’s Work challenge.

Next week’s theme: Reflections

1. Select a photo that fits this theme. Upload the image to your 500px profile, or pick an existing photo.
2. Add the tag #500pxReflection.
3. You’re done! To track all entries, click here.

The theme is open to your own interpretation, so grab your gear, start shooting, and tagging now! Deadline is June 22nd at 11:59PM PT.

As always, we held a random draw giveaway for all those who enter the challenge. Anyone who enters the contest will have the chance to win two months of Awesome membership. This week’s lucky winner is Jesse Herzog! Congrats, Jesse, we’ll be contacting you and upgrading your account to Awesome shortly.

Good luck to everyone! We’re looking forward to seeing your Reflection entries.