First of all , i really like both concepts .
my comment on the first one : the hand gesture i really like , but i find the position of the face too straight up …
In my view he is listening to somebody elses story or opinion , and i think he would turn he head more in listening to their point of view …
I also find the piece of cloth around his neck very stiff-looking , like it doesn’t fall naturally around his neck .
The second one looks like it’s the photo has been made after the alien has been caught , and he is just as surprised as we are by his presence , and i think that should be showed more …
Anyways , that’s my feeling i get by the pictures , and i totally dig them both …