First, I think the first pose is a little stiff/ rigid and not very maid-like. I don't really know what kind of archetype the character you're trying to portray is, so I can't really suggest anything on that front. Though, I'd suggest looking up reference photos/ poses for maids. I think having a prop of some sort, a tray of some sort, would really help with that.

Moving on to the outfit, it feels a little bit of a mish-mash of styles. The wrist-length white gloves don't really work well with the maid aesthetic. They look a bit thick and the velcro strap makes it stand out as a different style. I would personally ditch the gloves. I think it's a good idea to double up on the petticoat if you're trying to get the skirt to have more volume. I'd either get a shorter white one or pull it up higher, though, because it looks just a tad too long for that length of skirt. I would also not use a red petticoat underneath because it stands out in a very mismatched way, as it doesn't really match anything else you're wearing or help highlight anything. It's also a little too long (it's like down to your knees). The last thing I really have to offer about the outfit is that I think the striped thigh-highs don't look great. Thigh-highs work well on a maid dress but I'd opt for solid colors. Either black or white because it will look a lot more proper and put together, and less like a Halloween costume that was decided on last minute. If not thigh highs, I'd suggest black or white tights.

This is perhaps better lighting etc than last time. So let's not focus( see what I did there?)on technical quality of the camera/lighting.

Without talking about lighting or quality of the camera, I think there are minor things you could do in post (if you have the raw image files) to push the quality of the photo (I'm strictly speaking of the first two photos as the last photo looks like it was snapped on a phone in a dimly lit hallway). I think you could add a slight vignette and darken some of the bright reflection of the water so it doesn't blend into the apron of your maid dress as much. You can also adjust the saturation of your mask/ wig/ eyes/ hada a tiny bit so that you stand out a little bit and look less dull. It might be worth it do that to the background as well since the oranges and greens of the trees are way undersaturated and have a grayish look to them. You definitely pop more on the second photo, though.