Manhwa reading in a quality execution, it doesn't cut it on the eye. But in poor execution, it looks like a very bad SketchUp rendering. Also, authors often use the same sets of models for backgrounds in Manhwa comic. And the fantasy city with the castle is often the same city. We've seen it in illustrations in five other works.
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In general, Koreans usually do Manhwa reading in a good quality story. If you're going to become a Manhwa. The characters are usually of more adult proportions than in modern manga. And that's a nice big plus, of course. Those familiar with Japanese name suffixes will have to relearn them. And understand when ahjussi, ahjumma, -nim, -sanbae, etc. are used. Because they are often left untranslated.