2D Design with Simple Animation

Hello, I'm an independent developer working on a website to collect donations for a charity organization and I need some artistic animations. The cause behind the project is collecting donations to buy blankets and clothes to the needy living in rural areas where it is very cold in winter. The idea of the website is a very simple single page: The page shows a dark room where cold (frost like effects) are shown at the edges of the screen. A closeup of a child girl's face is shown in the middle, shaking and hands up tight (to reflect that she is extremely cold). At the bottom of a screen there is a slider indicating the amount of money the donor would like to give, starting with 0$ and up to a certain upper limit (100$ for example) As the user increases the amount of money, warmth floods into the room more and more (reflected with orange color for example...), and the child's face changes from cold and shakey to smiley and happy. The whole animation should be very emotional and smooth. Requirements: Designs and animations of the child and the room surrounding her... Examples: 1) Animation for shaking girl feeling cold... 2) Animation of girl staring with widened eyes (to be displayed as the user moves the handle) 3) Animation of happy girl (after feeling warm) Animations require the girl to feel natural (example: blinking...) A rough concept example of the whole site is [login to view URL] (This is a PC website right now and works very poorly on phones, also please wait around 1 minute as the web server refreshes once you try opening the site, it will show as blank page meanwhile) This site however has poor character animation which fails to capture the emotions, and lacks in the room and black space... Any suggestions to have better results are appreciated as well (for example, changing the type of animations... or not making the character smile but making it say something instead...) Those changes would be discussed. The whole animation could be made as a closeup to the child's face, or could capture the whole room. Also, instead of the slider there could be more elements in the room and the user presses on a stove for example to turn it on... All suggestions are appreciated, and will contribute in favor of the artist to be chosen over others The required animations are to be submitted as high resolution GIFs or as separate frames (PNG or JPG...), but not as a rendered video...