My first Pentax was an MZ-10 camera. That was bought in 1997 before my son was born.
I simply went to Media Markt and I tried the SLR cameras of all leading brands (Pentax, Canon, Minolta, Nikon). In my case the keyword was the ergonomy. I felt that Pentax has the easiest usage and the displays were clear for me.

The using filters like ND or polarising filters can be useful on a wide angle lens. But you can not use any filters with that one.

I agree with Peter. That one is the best which you find easier to use. Both of them has advantages and disadvantages.

Congratulations, this is a great news.

Knowing your studio shots I can only agree with her!

What a lovely face, you can be proud of her.
Basically it's a good portrait, I like the lighting, the eye-contact and the reflection of you in her eyes. But the part of her right hand is distracting a bit for me. I could imagine a tighter crop that could emphasize her beauty face.

It's too symmetrical for my taste. This idea with one glass at third would be more interesting IMHO. And I agree with David a larger picture would be better suited for opinions...

In my opinion the 3rd one is the best of them.

1st - The eyes are really nice in that but lights are different. The lighting of a face from a lower position isn't customary. And the right half of her face is dark a bit.

2nd - Her left hand is nice, it is held as it is taught. But she hasn't a lower body and the lights make her face a bit wider.

3rd - It's almost perfect. The line of her nose is parallel with the vertical edges of the photo, this accords to the rules of the portraits. My only criticism is that her left shoulder seem too big because it's closer to the lens. If you crop the right side of the pictue (to her hair) it will be perfect.

4th - The frontal lights aren't used in portrait photography, because they make too flat faces, there is no shadows on his face.

I hope that I didn't hurt you, I only wanted to help you.

Hi Stan, about the CCleaner came to my mind the Malwarebytes' Anti-Malware. It's a small and very useful SW to remove many adwares/malwares/worms. Maybe it can help you.

Not exactly. The Smart Collections does similar like Smart Album in AP. The big difference is in the Collections, where the AP provides more features and more flexible structures.
it's relative. I switched to Mac for Aperture. 3 years ago I should have to buy a new laptop and the Macbook Pro + Aperture had not so much higher price than a similar laptop with Windows and Lightroom. I did not mind the change.