well at least you have some form of plan!
Personally I wouldn't do any cardio after a legs day, and I wouldn't workout three days in a row, have one day off, and then do another 2 days mixed routines. Three-(possibly)four days a week for a beginner (or I dare say an advanced person) is PLENTY! You could easily do Mon Wed Fri (weights) and Sat or Sun (cardio) {just a suggestion, you'll know what days you have free}. It's the QUALITY of a workout that matters. And rest periods are equally as important!!!
How's your diet? Diet will determine your rate of success (visible physical changes) IF accompanied by good training. Do you have any idea about how many calories per day you need to be eating, and what percentage of your total calories will be made up from Carbohydrate/Proteins and Fats? If you don't know you should read up on this first and get some understanding behind the reasons for eating well to accompany your exercises.
Typically you need to make 100% sure that you eat near upon waking (breakfast), lunch and dinner, AND two or three other times during the day. Your meals should include a serving of carbs/protein and little-to-no processed/trans/saturated fats. (read up on good and bad fats).
