which mass effect ? 1,2 or 3 ? If it's mass effect 3 , make sure to download the free DLC ''extended cut'', otherwise the ending won't make much sense.
well i just finished peragus, and I haven't played the game in 7 years (been waiting for 1.8!) but it seemed that some parts looked better than others, I guess it's due to the mod ? looks good though!