Need expert's opinions and suggestions to significantly improve the UI of the application,

This is a system for handling customers’ business queries in the context of providing supportive services with customers, agents, and administrators registrations system. A customer can submit his/her query ticket, he will be notified by email/SMS alerts (if configured).when an admin or authorized agent responds customer will also be notified as well. It has also the ability to generate multiple types of business invoices for customers. and also can make business payments. and customers can see this business submitted queries, invoices, and payment requests.

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For demo (admin)

For demo (customer)

I will be very thankful for your kind attention from all you experts.

Thanks in advance.

ki-themes, charlie4282 please share your suggestions