I work my biceps and triceps. I work my chest and shoulders. I work my back. I don't always work my legs. My legs have always been larger than my arms so I feel out of proportion most of the time. I do try to work the legs once a week to keep them strong and toned.
I usually work out alone most days and don't have a gym buddy so I have nobody to remind me about leg day.
I'll just leave these photos down here to help motivate you to remember to work the legs too.