Create short facebook advertiment sketched animation

I need a short (max 20 seconds) “hand drawn alike” sketched animation which can be used as a Facebook advertisement. Background: we are developing an app which will “calculates” which plants are suitable for a garden. Customer needs to enter a couple of preferences and details (like dimensions of the garden) and the app calculates a proposed planting plan. Next step is that customer orders these plants and gets it delivered at home. The following frames needs to be drawn and put together in a short animation. Frame 1: Sketch of a piece of ground with no plants, only one tree. Frame 2: Same garden as in frame 1, two hands come up holding an iPad and taking pictures of the garden, also give the impression of measuring up the garden (with iPad). Frame 3: zoom in into the iPad from frame 2; one hand fils in the “workflow”. Choose a theme, selects colors, entering the garden borders and presses on submit. Frame 4: warehouse context: plants are put into a box, box is closed and box is carried to a lorry, lorry drives away Frame 5: Box is delivered in garden, hands are planting the plants. Frame 6: Animation finishes with an impression of the garden (also drawn) full of plants. See attached image for the "workflow". Image gives impressions of the app.