Born as Michelle Alejandra Gomez Bustos, her mother, Pilar is a pre-school teacher, while her father, Carlos was a businessman and football coach. She is fifth to seven paternal siblings. Prior to pageantry, Michelle had been into the modelling scene. She describes modelling as her childhood dream. As published in Miss Earth's official website, Michelle described her childhood days as, "I was one of the best students in my school, my favorites subjects were science, and Spanish. I loved to play in the park near to my house with my cousins and friends, we used to plant flowers and pick up flowers to decorate our houses, we were like the guardians of the park, and I also loved to dress up like a model and imagine that I was a super model." She learned that, "I learned to love nature with my friends; we were so worried about the plants and animals. And I also to respect every living thing on earth."
Pageantry
Prior to Miss Earth 2016
She first joined Miss Earth Colombia on 2012 before winning the 2014 Señorita Colombia pageant. Unfortunately, she was dethroned. She describes the experience as part of "God's plan."
Miss Earth Colombia 2016
Michelle Gómez represented her hometown, Sumapaz, at the Miss Earth Colombia 2016 pageant. At the end of the pageant, Michelle was hailed as Miss Earth Colombia 2016 and was crowned by Miss Earth 2015Angelia Ong. To work as a family for the development and preservation of the planet was her primary advocacy during her reign; then developed passion for mental health awareness, and body image shortly after.
Miss Earth 2016
Michelle flew to the Philippines to compete at the Miss Earth 2016 pageant where she competed with 82 other candidates. In the entire pre-pageant activities of Miss Earth pageant, Michelle was able to get a bronze medal for the swimsuit competition and several sponsor awards. As a Miss Earth delegate, the representative should have an environmental advocacy that serves as her focus as part of the pageant's environmental awareness. When Michelle was asked what her advocacy is all about, she answered, "I would like to work on changing minds and transforming hearts, to be more aware of what’s happening in the worldright now. If we transform our way to see the world and change our habits little by little we will increase our planet’s chance of surviving the contamination produce by us. As Miss Earth I would like to work with every person that I know as a family, a lot of people is better than just one so we can make the message get to more places. Also as Miss Earth Colombia will continue helping Miss Earth 2015 project with the recycling of used tires because I have seeing the positive impact this campaign has create in restoring abandoned parks that now are used by young kids as playgrounds." At the end of the pageant, Michelle finished as Miss Earth - Air 2016. The Miss Earth crown was won by Katherine Espín of Ecuador.
Present
After her reign in Miss Earth, Gómez chose to reside in the Philippines where she pursues a career in modeling. She was also signed under Viva Artists Agency on 2018. In the Philippines, aside from her modeling, Michelle's close resemblance to showbiz personalities, Dawn Zulueta, and Sofia Andres made her become more familiar to fans, and a frequent cast in online fictions.