If you looking to strengthen the leg muscles then this Vinyasa flow may be what you need. It is filled with warrior asanas guided with minimal alignment cues for those who are somewhat familiar with the yoga poses. It creates an opportunity to spend a bit of time in the poses in silence. I refer to some of the asana names in Sanskrit so you may learn them and it is a nice way to pay homage to this ancient practice.
Remember if at any time in your practice you need a break take it, listen to your body and honour it. Feel free to also try out the Gentle Hatha Yoga Flow sequence.