The only advice I have to give could be looked on more as personal preference.

The first has to do with articulations and note lengths. Be consistant. If you have a quarter w/out any markings(ie. no accents, dots, etc.) give it the same length and attack as all the other quarters w/out any markings. The same holds true for 8ths, accented notes, etc.

The second is being predictable. When there’s no conductor on the podium, I feel it’s the responsibility of the musician to lead the listener to lead their destination in a predictable manner. As an example, the 3rd lick (Tempo I, rit. to the poco Adagio), your retard. was good but you kept retarding after you got to the poco Adagio. As a listener I lost the pulse because you were ritarding during the half note that follow the dotted half in a place were the tempo, IMHO, should be constant.

My final comment is that I wonder if you’re using a little too much rosin or pressure on the bow. Experiment around and see if using more bow w/ less pressure gives you a less “bogged down” and more refined sound.

These are more just suggestions than criticisms. Hope you find some value in it. Sounds good though. Keep up the good work.