Vector illustrations

Rework the attached 8 images. Please suggest improvements according to the following descriptions:

Directory: A professional is selecting from interconnected profile nodes to represent discovering and choosing NEC4 talent, in a clean line-art style with subtle network cues.

Jobs: A user reviews and ticks through role options to represent evaluating opportunities, in a structured checklist-driven, minimal UI illustration style.

Services: A user interacts with stacked modular cards to represent assembling NEC4 service solutions, in a dynamic, system-based composition style.

Spaces: Multiple participants exchange messages to represent active discussion and collaboration, in a conversational, multi-element line illustration style.

Lite: A PPE-wearing user captures or records information on-site to represent practical NEC4 execution, in a grounded, field-focused illustration style.

Enterprise: A user monitors a centralised dashboard/network to represent oversight and control, in a structured, governance-oriented illustration style.

Events: A speaker presents to an audience to represent shared learning and engagement, in a slightly layered, presentation-focused illustration style.

Academy: A user actively studies and annotates content to represent guided learning, in an interactive, education-focused illustration style.

I am restricted to uploading only 3 files and no zip. I will forward the other 5 files to shortlisted people. Thanks.