been there.. i have learned to start with less and add a jacket or a pair of socks if cold. i have an Incubator, and to me it looks like you have it too cinched.. back off and see if that helps. i too stick my hand b/t the hammock and UQ to check for air pockets. you should feel warmth coming up pretty quickly once you lay down. if you are still cold look at getting a Winter Sock from PapaSmurf- i am waiting for mine to arrive for Winter camping later this year in the Whites.
In the depths of winter I finally learned there was in me an invincible summer. [Albert Camus]