Looks like you could have gone quite a bit hotter for the sear. I use Alton Browns method on a skillet. Leave it on high for 10 minutes. Should be hot enough to evaporate a teaspoon of water in seconds. Lightly oil the steaks with peanut oil. Then sear each side for 45 seconds. It will set off the smoke alarm, though, if your stove vent isn’t great.
I have a good used car worth of money tied up in my espresso stuff just so I can judge harder.