How can I write this as an accomplishment on my resume? Please help I'm struggling?

I had a temporary part time job that lasted for 2 years. I was an intern for an architectural photography agency where they had me to arrange and rearrange tons of photos that were unmanageable before I worked there. I had to file and organize these photos. I believe my accomplishments are gaining a good reputation as a hard worker dependable and I was able to make these photos more organized than before so how can I write this as my accomplishments