Making espresso: no crema. What to do?

Delonghi super machine automatica crema comparison

My Delonghi doesn't make as much crema with same exact fine grind coffee as when I put an equal amount in a capsule (yes, refilling my own) of my Nespresso Pixie machine.
This Delonghi is 15 millibars of pressure and the Nespresso is 18 (I think thats accurate).
The Delonghi spent puck doesn't seem to be has hard packed as the Nespresso puck.

Just food for thought.
 
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