First low heartrate run

I would really like to see how my training improves. I am doing low heart rate training with Kirsten to get a really strong base before I add in speed work. My max

Mile 1- 10:37 , average heart rate- 143
Mile 2- 10:51, average heart rate- 145
Mile 3- 11:23, average heart rate -147
Mile 4- 11:22, average heart rate- 142
Mile 5- 11:42, average heart rate- 134

So, overall, Overall we ran 5 miles in 55 minutes, my average heart rate was 148 and my max was 170. (that heart rate is off because it is also including my treadmill workout from the day before.)

When I ran my 5k on August 10th, I ran a 25:28 which is an 8:10 pace. My average heart rate was 190 and my max was 208.

I would like to see how my fitness goes up after building my base! I am excited for this process!