Satyajit, I would encourage you to continue on regardless of the recording. One with less static is obviously desired, but stopping your lessons because of the static seems to me to go too far. I would hate for you to miss the opportunity to continue to progress. I think I can offer some limited feedback with what you've got.
On your scale, I could not hear the third note clearly. You may have played it too softly, I'm not sure.
On the arpeggio piece, really good transition from measure 13 to 14.
On the Valse, you played at a nice even paced, and seemingly relaxed, but your RH position did not change. We had been encouraged to vary the tone by moving around our RH to three positions - near the bridge, over the soundhole, and near/on the neck. Although you didn't change your RH position, you did seem to change the force with which you plucked the strings, so you did vary the volume a bit, but you'll get even more by moving that right hand around.
Good luck. Keep with it, but also, if you can, experiment with other microphones/recorders.