Your gums are not receding. The lower canines are more prominent due to the alignment/position of your lower front teeth. You might want to consider orthodontic treatment like braces or Invisalign to align your teeth.
Hope this helps.
I would suggest that you have a consultation with both an orthodontist and a periodontist to determine the best plan of action for you. I do believe that your case will require comprehensive treatment and a team approach. You may have slight gingival recession but what seems to be more important is to identify the factors that are contributing to it and treat them according.
Your roots are not showing in these pics so you do not have recession. Sometimes some crowns of teeth look longer then others giving the impression of recession but the teeth are healthy
Gums Don't Seem to Be Receding
Receding gums can pose a risk to
your overall oral health and dental comfort, in addition to affecting your
appearance. It's wise to be concerned about this, but based on your photos it
doesn't appear that your gums are receding. It seems that the position of your
teeth is the reason for their prominence. If this is an aesthetic concern, you
can consider scheduling a consultation with an orthodontist to learn your
treatment options. Good luck to you.