Rex Steele is one of my favorite comics of all time! It's SO animated, and lively feeling! I loved the animation done of it too XD You just have such a great inking style, and I'm loving it in color too!!
I'm getting a jeff Smith "Rasl" vibe from these pages in the best possible way.
Though I am curious about your panels - the one strictly horizontal border caught my attention. The diagonals do a lot to add tension and then you changed the flow a little with the horizontal panel. Any particular reason there other than the character delivering a line?
It's been awhile since I drew that page, but if I remember correctly I did it to support the line of force by the Nazi's action, which was mostly horizontal. Also I think I felt that something on the page needed to be horizontal so that the diagonal lines would seem more dynamic. Otherwise it could get homogenized. And probably also to make the following panel when Rex makes his comeback more eventful.
Or maybe I'm totally wrong and it would have been better with a little slant on it too.