No, that is what it looks like. That was one of the "minute details" I was referring to, plus the amount of shadow detail being cast on the little things (like the glove on the ball).
I don't think the skies have made a significant leap this year, but I do think there have been a lot of lighting changes. Taking the Bautista shots for example, there is something about night games that looks "darker" in a good way. It's not in the brightness department, though; it's in the saturation of the colors. Maybe it's just the way how Toronto's jersey and stadium look, but there's something different with the lighting that's making the "depth" of players on the screen looking a lot more fit, instead of just layer-caked on.
Also, the grass and dirt haven't made some of the more significant color alterations that I hoped they would (still an early batch of shots of course, but I am not one to be optimistic for those kinds of changes in the late stages of the game), but there are definitely differences to the colors and detail altogether. The dirt seems to have made more changes than the grass, but as most have pointed out, if you were expecting more detail, I don't think it's laid out on the ground. I suppose some sacrifices have to be made to maintain a good framerate, and I'm willing to let that slide, given that it looks like they've added more detail to the backdrop scenery, which is always a major plus.
The final thing is that I indeed do thing there have been refinements to the player models. Remember, they've been working hard on making a new skeleton for players, and now that they have it, I think that they can shape and mold players a little more differently based on said skeleton, and in that second Padres shot, it just seems more like each body part is more defined (particularly in the upper torso area). Again, maybe I'm looking for differences that aren't there, but it's not a stretch to imagine that these things haven't been worked on anyway.
I'm holding out until some raw gameplay footage to reserve final assessment on what the new visuals mean for the game, but this game means so much more than changes that can be seen in replay stills. If the lot of the presentation front has been given a face lift (we already know they have been hard at work in the sound effects department, for one), the visuals will drag along for the ride with it, almost like how the lighting as a whole seemed to make everything else in the game look that much better.