i dont like the tail on the snare but thats preferance. i prefer to glean the track over with crash breaks n stuff i like my snare n kick tight as possible.
the wump sound is nice to improve i'd boost it and very slightly distort it. i like the hook of the track (am guessing thats what the sample i listened to is).
overall if it was an flp on ma cpu right now thats all i'd do...... boost the bassline and tighten up the snare get a reall tight snappy one in there and boost it round the 160 mark then add some hi breaks and crashes in there.