Not quite the eggspots, since females can have them too. It's the comparison, the top fish has strong facial features. A larger, wider mouth and more rounded forehead. The red color is rich as are the dark blotches compared to the other. Coincidentally this fish does happen to have many well-defined eggpots and more drawn out and pointed finnage.
The "female" color is more subdued, while subdued color may also be evident in subdominant fish the different shape of the head compared to the other would lead me to believe the differences were gender based.
Using "classic" characteristics by themselves is often quite misleading. When used in conjunction with other defining characteristics you can come up with a more accurate gender ID though it's still not 100%. Only way to know for sure would be to vent but it takes a trained eye.