Home studion natural light self-portrait

In the interest of improving my skills as a portrait photographer I am embarking on a project, who knows how long, to master every piece of equipment I own and try as many practical tips and ideas as possible from the many books, YouTube videos and Flickr groups I have access to, as well as my own.

I will appreciate any and all practical comments on what works and does not work in these tests, what I can improve and what new techniques I should try.

This is lit entirely by the window in my studio. No flash. F/7.1 and 105mm, so not completely sharp towards the back.

I did not feel any processing was necessary, but still did the following just to feel like I was in control:

• Adobe Portrait color profile -- very understated, aiming at natural skin tones. I believe it lifts shadows and gently mutes saturation.
• Exposure -0.3 EV
• Shadows +16
• Blacks -5
• Subtle vignette -- I think it's obligatory :)

The good: hair detail. I found a head tilt. Not tense or worried looking. Natural look -- expected from natural light, but window lit portraits can still be too contrasty.

The bad: is this an attractive catchlight? At zoom, blinds can be seen. But headshots are not meant to be zoomed in. Not sharp front to back.

Nest steps: use spray bottle to get wrinkles out of the shirt. F/8 or 85mm.

Try different angles to the window. This angle may be perfect, but there is only one way to prove it.