Want to be featured on 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 show us images that depict symmetry, a compositional element that creates a sense of harmonious proportion and balance in images. We have received more than 300 entries—thanks to everyone who got creative, uploaded, and tagged their photos. Though it was tough to choose from all the inspiring entries, below are our 30 favorite photos from last week’s submissions—from architectural landmarks to portraits to still life objects.

To view the rest of the symmetry gallery, click here.

As always, we hold a random draw giveaway for all those who enter the contest. Anyone who enters will have the chance to win two months of Awesome membership! This week’s lucky random winner is Hsien-Hao Mei. Congrats—we’ve upgraded your account!

New theme for next week: Into The Woods
1. Select a photo that fits this theme. Upload the image, or pick a photo you’ve already uploaded.
2. Add the tag #500pxIntoTheWoods
3. You’re done! Track all entries here.

The theme is open to your own interpretation, so grab your gear, start shooting, and tagging now! Deadline is July 20th at 11:59PM PT. Good luck to everyone!