If you add a lot of chipped paint, it would make more senese. Lots of plasma burns but the paint never peeled or bubbled? Dubious. You could actually take some latex paint, heat gun it a bunch, then glue it on and blend it in.
Other than that, looks ok- like you were ducked and running away from a hail of plasma fire! In which case, you might wanna change up the angles of the burns slightly, so it doesn't look so much like one guy had six guns.
I like it though. Reach was a hellhole, may as well make it look like it.