Massive improvement from the first video to the most recent one (oh just read the full OP)
It's always nice imo to have a little webcam video feed, just makes your channel visually different to every other channel unless you have a twin that also does lets plays.
Try to go for Daily uploads as your current pace would be very difficult to keep up and a daily pace is already quite a lot of work! xD
Also a general tip is to try and let's play newer games (or games just have just come out on GwG or PS+) Even if it's on PC as newer games and these games will hold a lot of traffic and give you more opportunity to get more traffic and viewers and more feedback on how to improve videos :)
There's only 2 races: White and 'Political Agenda'
2 Genders: Male and 'Political Agenda'
2 Hairstyles for female characters: Long and 'Political Agenda'
2 Sexualities: Straight and 'Political Agenda'