Improvisation in scales, and chord progressions

In today's lesson, we focused on improving in certain scales to different chord progressions; the scales we focused on were D blues minor/pentatonic, B natural minor/blues minor and C natural minor. My teacher played the chord progression from the book in D blues minor and I improvised using the scale, and I think I did it quite well. Barry said that I played very confidently using a variety of tones and licks, various techniques like tone bends, hammer ons and pull offs and slides. He then taught be about a second position in which the scale can be played in, so when using this second position as well as the first when improvising, you can get a bigger variety of tones and expand your lick arsenal. He then taught me the same thing for the other two scales, so I could practice using both positions straight away. With the second chord progression, Barry said that since I'm using the B natural minor and blues minor, I should switch back and forth between natural minor melodic licks to blues minor 'bluesy' licks to get a variety of different sounds. I think I did this quite well - I used both scale positions confidentially and had a even mix of the two, and had an even mix of two scales.
When it came to playing the chord progressions, I think I did this quite well because I had done them before with my previous teacher, but I still need to revise all the different chords and become more confident with them - the chords include (using C for example) Cmaj, Cm, C5, C7, C, Cdm7, Cag7, and Csus4.