@Dragol: The glow of the plant looks really cool. The glow of the surrounding white and yellow flowers look nice too. However, the overall large forest overlay looks kinda tacked on, since it doesn't feel like there are enough trees to warrant such an overlay.
the_nackster: Well, I'm glad to help.
Corfaisus: Hmm, all I can really think of to say is that in the New Mausoleum map, the arch things look way too thin/weak and flat. The graveyard map also has an incredible amount of dots. This straings the eyes a little, although maybe it's fine ingame.
@Lennon: The whole screenshot feels way too "open." The character is so small in comparison, and the overlay adds to the feeling of extreme openness. Perhaps you should tone down it's transparency or draw a mistier one. The thickness, or rather... thinness, of the road looks odd in the second screen.
@olions: It's not bad if this is your first attempt at thie sort of thing, but it needs a lot of work. The whole structure feels somewhat awkward. The yellow mist strains the eye a little, because it's not exactly "smooth." (As in, it's not coherent with the style of the chipset.) Some of the dirt/road areas are in illogical places (such as under a tree). The small yellow orbs also stand out a little too much. The sections that are filled with trees looks odd. Compare the left edge to the right edge. The left edge is nice and even, which doesn't realistically happen, and the right edge looks better, but there may be some color consistency issues, although perhaps that is due to the overlay.
As for your previous map...
Well, it's way too open, for one. The buildings are awkwardly shaped, or at least the upper right one really is. The grass doesn't smoothly transition into the bridges on the lower corners and so the lower corners look as if they are higher ground, giving off a weird perspective. Most of the land formations look a little too forced and unnatural, for example the straight edge between the water and land near the lower right. The "stairs" going up and down through the whole map don't really look like stairs either, they just look like tile edges. (Especially in comparison to the higher edges on the land right next to the stairs.) The overall structure is okay, although you could do something to break up the monotony of the water and the orange roofing on the edges.
@Jabas: Looks good, although there are perspective issues that have already been mentioned. You could also do something much more interesting with the panorama.