Watch the I IV bIII bVI Etude Level 1 online guitar lesson by Vicki Genfan from Open Tuning Handbook: Rhythm
There's a "jump" from the 3rd fret (Bb) up to the 8th fret (Eb) – use your dots as guides to help you remember where you're going to land. Practice getting there smoothly. Slow down if you need to at first. If the finger picking pattern is new to you, take some time to practice it slowly on the open G chord before you jump into the progression. Always think about moving as few fingers as possible with your left hand (or fretting hand) when changing chords. Break things down into small sections to get them under your fingers.