Adding ALT descriptions to HTML

I am interested in hiring someone to add keywords that describe pictures to HTML as ALT description tags. I will provide the HTML files and a set of 21 images for each file. I have included 2 sets of examples (Bob the Builder & bear). Attention to detail is crucial as some of the HTML files have had images replaced and thus the sequence of numbered pictures has been interrupted (please see the "bear" example). There are 100 total HTML pages to be completed. 50 will be provided immediately and the final 50 will be available in the next 2-3 weeks. This project requires experience working with HTML, text editing software (NOT word processing), knowledge of children's programs and characters (for example Disney movies, TV programs such as Dora & Sesame Street, toys such as Polly Pockets, etc.), excellent English vocabulary and writing skills, knowledge of Bible stories and religious Christian imagery, and attention to detail.