Animation for web site logo

We want to work an animation drawing sequence around our tree logo (see attached logo). This will then be used as either an full page intro page or imbedded somewhere in our new web site currently being designed. Also want to use it as an advert, to must be able to be scaled to all sizes. We needed to be in either flash or preferably HTML5. It needs to look crisp at all sizes and compatible on all types of devices, from 46 inch screen to handheld and mobiles. The idea is to go through the four seasons, found in Scotland UK. These four seasons are spring, summer, autumn and winter. Also during/end/some somewhere in the animation the following caption is shown, Crubenbeg Highland Holiday Cottages.....ever changing, ever improving...... All of the animation should be hand drawn line type style drawing using organic natural related colours, if not, almost in greys and very very light colours that are related to the four seasons.... (See deer image attached for example). It needs to look organic and forest like. Almost like "winnie the pooh" pencil drawings. search google to see these. The following ideas to be used for the four seasons - (you can suggest your own ideas and we encourage you to do this) Spring - Snow stops falling and snow melts, then from the ground some flowers (blue bells / daffodils etc) appearing and blossoming, then clears and merging into - Summer – Some / One animal appears (a rabbit or squirrel or deer) and some grass and plants grow, then clears and merging into - Autumn – Some leaves blow in the wind and some wild mushrooms grow from the ground, then green on the tree changes to brown, then clears and merging into - Winter – Snowflakes start to fall and snow on the ground, then merges into spring. ......all to look as though hand drawn pencil animation (have a look at the deer advert image attached called autumn12).....perhaps using a caption, Crubenbeg Highland Holiday Cottages..........”ever changing ever improving”.. Regards (happy bidding) Cameron