If you can’t see your Item in your envato dashboard right sidebar then your Item has reviewed and you must should receive email of the review result (if you didn’t changed the email notification settings). If hard rejected then you will get only email to let you know hard rejected. If soft rejected you will get email with the issues list exist in your item and tips to fix those and you will see your item in Hidden Items Tab. If your item got approved then you will get a notification email into your inbox (your envato account email address) to let you know that your item got approved and you will find your approved item in your Portfolio page. sometimes email can go in spam, so need to check inbox, spam, junk as well.
More information here: How to Get Your Items Through Review at Envato – Envato Author Help Center