Side dish under construction

I made the dish below for the first time today. I pieced it together after reading several recipes. Need to tweek it a bit more. The tastes were good, but it didn't leap out at me. The juices were good to bring out a freshness. I'll work it a few more times and update this post.

Dressing

1 lime juiced
1 lemon juiced
1/4 t cracked pepper
1 t cumin
1 t salt1/4 C EVOO

In a bowl, whisk together the lime, lemon, cumin, pepper, and salt. Add the oil in a stream, whisking until emulsified.

Salad

2 medium tomatoes, chopped small
1 can black beans, rinsed and drained
1 can whole kernel corn, rinsed and drained
1 green onion, sliced

Combine all of the ingredients in a large bowl and toss with the dressing. May be made one day in advance. Serve slightly chilled or at room temperature.