Indeed, and it adds the fantasy feel to it. It sort of depends on what is your goal - fantastic or realistic? For fantasy, these shapes are excellent, if you're trying to hold on to some realism they look weird.
The way this goes however makes an awful lot of peninsula which are very easy to defend. Consider that too.
Also, I guess you really like question mark peninsulas :P
Edited 12/14/2015 17:10:47