Our first steps tour and our frequently asked questions will help you a lot after registration. They explain how to customize the interface (for example the language), how to upload files and our basic licensing policy (Wikimedia Commons only accepts free content). You don't need technical skills in order to contribute here. Be bold contributing here and assume good faith for the intentions of others. This is a wiki—it is really easy.
I want to appreciate you for uploading so many high quality pictures and including it in to Wikipedia articles. Have seen you many many times adding beautiful pictures you have taken to Kerala-related articles in my watchlist.