-I think it sounds a bit better to separate the timpani and low string parts into separate octaves like this:

Currently they're in each other's way, and both of them don't really come out as well as they could. In m4-7 there's an accent on the A in the brass every two beats, which you could add like this:

For m1 you could either have the whole note in the L.H. as a half note, or leave out the timpani for this bar only:

-m1: You could write the Eb as D# too, so it's the same note as in the L.H. Same in m2 and m6: They don't necessarily have to be an Eb since they don't go down chromatically to a D, so you can make them all D#'s for some more consistency.
-m2: I don't hear the R.H. horns re-strike on beat 2, so you could just make the note on beat 1 a half note.
-m8-9: I hear this in the L.H. at the end of m8:

You could leave it to the player's interpretation, but you could add a pedal mark in these two bars too.
-m10: The R.H. jump to this octave on beat 1 is very big and very fast: you could change the last two 16ths in the R.H. in m9 to an 8th, and move the lower A in m10 to the L.H. Using the pedal in m9 helps letting the notes ring on until the start of m10 too.
Lastly, the two quarter rests at the end of m10 should be a half rest.