Help for a score Two steps from hell

hello, after so long that I hesitate to do it I am finally writing the song of the two steps from hell Race to Durango, but I have some problems with timing and feeling the instruments that are there.
I state that I am writing for string orchestra, so a little different from the original, for now the part of the horns I adapted on the violets. For now I have arrived at the minute 0.39