No nudity, Semi nude, fully nude?

Seductive poses are what gets my attention, regardless of the level of nudity.  

not staged to allow deception about her true appearance, I'm okay with any kind of photo, but prefer them on the classy side whether clothed or full/partial nudes.  If I want Nasty, there are civvie girls I can call and fuck for free.  Lol

No nudity, Semi nude, fully nude? Yes, yes and yes.

I prefer a series of well done selfies or amateur smartphone photos with minimal makeup over professionally posed, glamorized, and photoshopped pictures.

Photos where thought was put into poses that highlight the provider's best features (ass, tits, legs, face, toys, flexibility, etc.).  And good lighting and staging.  In other words, not hastily taken photos.  Don't show me a selfie from the bathroom, with towels hanging in the background.  Or, a bedroom photo, with a rack of clothes in view.

... but to me Sex is not Nasty.  
What's nasty is sour or angry or dazed looks, dirty cluttered bathrooms, lazy dumb carelessness.  
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Most attractive thing to me is a smile with suggestion of intelligence.  Quirky poses (peeking over the rim of a bathtub? Yes), suggestive clothing, closeups of your CFM heels, bare tits, kinkwear -- all good but as add-ons, not the centerpiece.  The main images should show you as cheerful, smart, and sexy.  
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If someone feels sex or sexiness is dirty, disgusting, degrading, or dangerous, I don't want to be around that person at all.  No matter if they are  pretty and/or sexually skilled, the stain of that feeling will come through and disgust me.  
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I don't want to be around men who feel that way, either.  

No Blurring

Some girls need to blur out their faces and identifying ink to avoid being exposed to their family.

It's that simple.  
I don't need erotic. I don't need explicit.  
Natural poses that aren't staged to hide "imperfections."

I'm with you on the last statement. If I'm not getting the impression the provider is comfortable with this type of job I have less confidence the session will be good. But the reality also is that if I have not seen the provider I see the images as pure ad and so not something I should take as reality so the pics themselves don't induce me to go see any provider.  But if I see what seems to be a genuine smile I'm willing to consider. But that then becomes a bit conditional on the agency and my history with their ads.

"Most attractive thing to me is a smile with suggestion of intelligence."

I prefer professional photography. One, they look great and two, it demonstrates a commitment to the provider's profession. I also prefer a clear picture of her face. I understand why, if they don't, but I like it when I can see her. I like posses with and without clothing. If clothed, I like dress attire that demonstrates class. Lingerie is fine, but nudity is prefered. Hands across breasts are seductive. No weird faces or hand gestures. A pretty smile and a classy pose. I like poses that shows a woman's assets, particularly here derriere. Lastly, she must me tanned. If she prefers to avoid the sun, then get a spray-on tan and maintain it so pictures are representative. For me, lily white is a no for any woman.

IMO variety is important, different angles and poses, some clothed, some lingerie, natural and staged are both ok. Ultimately I'm trying to get a good sense of the providers personality and appearance. Nothing is worse than the exact same pose in different outfits. Gives me the impression that she is boring and unimaginative. Same is true for facial expression. Even with some blurring smiles, seductive gaze, happy eyes. All of these things make me feel like the provider will be enjoyable to spend time with. Also excessive filter use is a big red flag and pretty easy to spot.

...and I cannot lie!
You other brothers can't deny
That when a girl walks in with an itty bitty waist
And a round thing in your face, you get sprung

Plain passport photo works for me!  Hate walking into a room and seeing someone different.  

Can’t wait to go through all the answers and read them.

This made me laugh. Looking at my passport photo, I look mean!  Completely opposite from my personality and not what most gents are looking for in a provider!

I like it all. Classy, sassy and/or nasty! I prefer there to be some non professional shots so I get a realistic idea of what to expect. If her photos are all glamour pro shots, it's likely to get my spidey senses activated - especially if they're multiple years old

because I just was on your site before coming here. I was looking at pictures of your fine self and wondering...
why do some provider people have the blurred face or redacted smiley face in half of their photos and also some photos showing their face, full on.?