I really like the steam making the heart. Could you try and make the steam look like a sexy hot woman barrista and instead of looking at the cup from the 3-D perspective, we could do like a Latte Art in the cup. Does this make sense?
If you google lattee art im sure you will see some cool pics of barista's making really neat designs with the foam of a lattee!
We we like to see some colors that would catch the eye also. Red, Orange, Blue, something unique!