Do Tajweed mistakes invalidate salah?

[a.s.]

I've memorized a bit of Qur'an, and Alhamduilillah, it has raised my iman a lot. Only thing is, I dont take tajweed classes (dont really have time), so I tend to make some mistakes in pronunciation. Im not too bad, because I listen to a lot of Qur'ra and try to copy them exactly, and I recite Qur'an often to practice, but I still mess up slightly on some letters (particularly ظـ and ـض and ـق).

Do these minor mistakes effect my salah in anyway, such as invalidating it?

The reason is, in salah, I tend to focus more on the meaning of the Qur'an than the pronunciation and keeping in mind that Im standing in front of Allah so I have full Kushoo.

Alhamdulillah I've almost perfected my Al-Fatihah recitation, still not there yet, but its better recitation than any other surah I've memorized. I plan on improving my tajweed as I go along memorizing.


Please remember me in your duas,
salam.

[umar_italy]

brother.

This may be useful:

http://daruliftaa.net/General-Islami...tmistakes.html

[a.s.]

brother.

This may be useful:

http://daruliftaa.net/General-Islami...tmistakes.html

Jazakallah akhi, article was very helpful.
Most of my mistakes are from Letters and some from Diacritics, and its a relief to know that there is a reasonable room for error in these areas.
Again, thank you.