@Vasil Stanev: Times New Roman is bundled with Mac and Windows operating systems, so very few people need to license it.
@Martin Silvertant: Many otherwise very competent type designers do not routinely include different versions of their acute accents for Polish. Pretty much all Adobe fonts released or revised in the past 15+ years, which have CE support, also have this feature.
Hey, no problem. I remember when I was just getting going in type, I was always amazed at how generous various people were with time and feedback. Just pass it on, ten years from now when you’re a famous type designer.
I think it would help if you decided what you were going for. Is it grotesque? Neo-grotesque? Humanist? Have a clear vision of what the overall "feel" is supposed to be that you can express in a sentence. Or even just decide what the one or two letters are that you think are most important and most perfect as is, that define the look and feel of the font—and then adjust others to fit that vision.