Not a bad first episode with room to improve. I would use more music for scenes or have more environmental sounds playing while people talk. Make sure not to over power the actual voices with it though.
Second a few scenes could be cut down by a few seconds. For example the scene where Spheal say "We are super cool afterall" you can cut about a second after they finish the line. We get the implication that he's making his way into the shed and his words. Another scene to cut down is the "Oh boy a client" scene. You can end on spheal turning and rolling just before he makes contact and clips through slowbro.
I hope this helps you grow better and I look forward to future installments :D