Is this Exercise plan good?

Im 5’8 270lbs now im not all flab i do have muscle and im not a total fatty i have bulk…but i just joined the gym and this is what im doin i just want to make sure i am have a good plan going.Oh and im not eating junk food its all healthy home cooked meals 3 times a day protein/carb breakfast…medium lunch such as sandwich and a little snack of fruit. dinner is salad/something light

45 minutes work out including (after breakfast)

1/2 mile running to warm up body
upperbody workout lifting
work till muscles tire a bit
1/2 mile incline powerwalking
abdominal workout till muscles tire
1/2mile run

now is this good? om not going accesive on the work out so i dont make my muscles sore the next day

I also repeat this same workout plan at night right after dinner

now i vary on the machines i do in the gym every workout session

Is this a good plan? please help with adaptations for best results thanks =D
and i do this everyday