Have you ever hired a designer to help with a project, then challenged and micro managed everything that person did? It is not fun for anyone involved.
Remember, you hired your designer for a reason. That reason was to solve a problem tied to your business objectives.
Let your designer do their job. Let them present to you what they did, and why they did it.
Let them explain to you how their work ties into your business objectives.
If you have challenges here is how to handle them. Provide a cohesive feedback doc and let your designer explain the choices they made.
If you end up hiring a designer, and find yourself doing their job its because of a few reasons.
You dont actually trust them.
You have issues delegating work to other people.
Or, you made a bad hire and they are doing a poor job.