I really like this so far but I see one problem. But before I go into it let me say I like your description of some things even though it could be worked on just a little bit more.
The problem you use the comma to much and have run on sentances. I know you said don't really mention it but I want to show you how one example should look.
It could look like this. See how its spaced out with the one quote and there isn't as many commas.I leant back again listening to the monotonous chipping of horses hooves along the beaten track, being a mercenary had it's moments and sitting on a wagon with a spoilt prince in the back and a bad tempered horsemaster at the front was not one of them, "bored again are we Garet?" came a call from Ray, a rare and unusual occurence - Ray not insulting me while asking a question, an immediate reply was "as usual Ray, but i don't think it can be much better for you eh" which was followed by a soft sigh from me and a bout of laughter that shook the carriage from Ray, one thing you could count on with Ray - bad taste in times to laugh.
I leant back again listening to the monotonous chipping of horses hooves along the beaten track. Being a mercenary had it's moments and sitting on a wagon with a spoilt prince in the back and a bad tempered horsemaster at the front was not one of them.
"Bored again are we Garet?" came a call from Ray, a rare and unusual occurence.
Ray not insulting me while asking a question, an immediate reply was, "As usual Ray, but I don't think it can be much better for you eh," which was followed by a soft sigh from me and a bout of laughter that shook the carriage from Ray. One thing you could count on with Ray, bad taste in times to laugh.
But other than that this was pretty good for a first fic. In the example about the horse hoves and such is good description IMO. The end part was creep with the dead body on top of him. I would freak out...then again I think everyone would freak out. See ya next chapter!