alter and imrpove design of 60 images for website

We want to make a set of images for the website. We already have existing images that have been gathered around either from web or by editing on MS office tools like excel and power point, we need to create images which are of high quality and have a standard look and feel that matches the website. We will provide you all the existing images, some are in jpeg, some in psd, and you will use it as a guideline to know what is needed. You have the freedom to propose new images that are better fitting for the subject, or create a new high quality image taking the existing one. I am not looking to just save as existing images in alternate extension, please note that. I want a set of completely new images. the ones used serve the purpose but maybe doesn't have a standard look and feel, also color wise. the website homepage in psd will be provided the website category is below and under each category you have the number of images: 1. About us 3 Images describing history and figures 2. Services a. Preview images 5. These are smaller size images linking to each category b. Consulting 1 image i. Business process management 1 image ii. Quality systems 1 image c. Outsourcing 1 image i. Outsourcing of professional 1 image ii. Application outsourcing 1 image d. Technology 1 image i. Information management 2 images ii. IT infrastructure 2 images e. Training 1 image f. Engineering 1 image i. Data Center design 5 images ii. Cell sites 2 images iii. Facility management 1 image 3. Products a. Preview images 18 images b. Software i. ERP. To design an image ii. CMMS to design an image c. Data center 2 images for each subcategory i. Raised floor ii. CCTV iii. Access control iv. Cooling v. Fire fighting vi. BMS vii. Structured Cabling viii. UPS d. Telecom 2 images for each subcategory i. Telecom towers ii. Telecom shelters iii. Site monitoring iv. energy