That's pretty poor.
Should look more like this.
Even the above leaves room for improvement, and it's not about being shinny, it's shape and contours.
Look at how the light travels along the port.
If this was a road and you were hitting these contours at 100+ MPH, how smooth would your exit be ?
One thing that I did when I was porting my Trident Head was to hold it up with the Combustion Chamber pointing to the Sun.
The light then traveled down the port and I could see the exact shape of that port.
This was the first "head that I had ported.
I did the R/H port and thought that was O.K.
I then moved onto the Center port, this I did better than the first one, so went back and did the first one again.
This was now better than the second one, so re did that !
Now onto the third port ...... I think I did about 11 ports on that 3 cylinder head.
I then built a simple flow bench and checked it there ..... more tweaking .............
Oh, my "Tutor" at the time was an Ex Mechanic specializing in cylinder Head work from the Old BRM Racing Business in the U.K (Well retired)
Also, I've broken a few bits along the way .....