Changes required for a wordpress website.

Got a wordpress website with a professional theme [login to view URL] these changes:\r\n\r\n1. Add typing animation in the main slider. To the last two words to come in typing animation.(option given in the slider)\r\[login to view URL] logo according to the theme design (a simple design)\r\n3. Got 4 images want to add a black transparent shade to it.\r\[login to view URL] space in one column and remove one in a column.\r\n5. make a one page and link all menu options to the [login to view URL] someone press the option it show the content where it is mention of rather the whole page and adjust the already mention content as per the required [login to view URL] got very small text of 500 words only.\r\[login to view URL] footer remove the theme name.\r\[login to view URL] website load there is error shows up have rectify that and the error is-This page was unable to display a Google Maps element. The provided Google API key is invalid or this site is not authorized to use it. Error Code: InvalidKeyOrUnauthorizedURLMapError