Yeah, but you could have the entire room as one texture instead of using tiles.
Generally I'm in favor of more generic light sources, and shadows as well since you can re-use the tiles.
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Also, you don't need to lose the outlines. It's a matter of style choice. But there is a point where it can be too much.
When you break up the outlines, you add more potential for depth and it adds variety.
So even if you plan on using a lot of outlines, it's still worth to learn how to avoid them, especially for small details where outlines would be too messy.
In the Layton example, there are a lot of outlines and it makes it looks quite crisp. But there are still places where they skipped outlines.
I guess that personally, I lean more towards a softer style.
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