PHP, jQuery, Ajax, Javascript Design Script

i have a script that has been started, but needs some work. jquery, php ajax and javascript seem to be the keys here. in step 1, the script needs to allow for the user to upload an image. the script then resizes the image to a maximum 300px width. the image is displayed on the website in a div, and using a jQuery cropping plugin, an area of the image with the dimensions 29x136 can be selected. the crop markers should be able to be pulled in locked proportions, and resize the selection to 29x136. this cropped image will be placed on top of another image in a second placeholder div. for step 2, the second images' hue will be able to be affected by a jquery color picker, and processed using php/ajax. step 3 allows for text to by typed and dynamically placed on top of the second image, allowing the user to completely customize the image. all of this information can then be saved by the user and submitted into a database. the final image is saved as well. finally, the user needs the ability to call up all of the saved attributes by placing their mouse on top of a thumbnail created underneath the entire script. the database should be prepared to automatically handle these thumbnail creations and the calling and saving of the proper values. there should be no limit to the amount of submissions available. please read this carefully and check the attached image for a visible idea of what i've got so far.