I would suggest FR/LG graphics. WesleyFG's graphics, for the most part, follow no particular style. Even though he has the Marnian set, the tiles in it are of variable quality and style, and usually don't look very good with themselves. The shading in some is great, but the shading of others is terrible. Some tiles are pillow-shaded (which really shouldn't be done when spriting tiles), and others aren't. The perspective of a lot of tiles is also off. If you he allows it, I would say edit them extensively to make them look better and fit better together, but I don't think he does.
If you use the FR/LG tiles, you have consistent quality and style.