Do you think i'm doing enough exercise to get a great figure and stay healthy?

Monday-friday i cycle to and from school which takes me in total 35 minutes there and back but i don't really class that as 'exercise' as it's just what i do to get from one place to another..well, here's what i've done this week:
mon= 50 mins exercise bike, 30 min 'tone-up' workout
tues= didn't really do any as such, but had an induction at my gym, went on every bit of equipment for 3 mins.
wed= took day off (i feel guilty now!)
thurs= swam for 45 mins
fri= gym: cross trainer= 20 mins, bike=40 mins, treadmill=20 mins, rowing machine=10 mins.
sat=took day off, though did do a slow 3 and a half mile walk.
sun (today)= was going to go swimming but couldn't be bothered in the end...is that bad of me? but i'm going out for a 6 mile walk with my family....
do you think i'm exercising enough? i feel so guilty in the days where i haven't exercised. Do you think i should increase what i'm doing?

you're definitely doing enough. I'm guessing you're not eating a shitload either. If you eat healthily, you'll probably even lose some weight.

you are doing great and don;t feel guilty about a day off here and there because rest is important too. with what you are doing and avoiding too much junk food you should not have problems

Pictures!!!

Seriously though, "they" say to do 30 minutes of cardio, so you're doing great.

A day off will be important after a day of weights, depending on how heavy your "tone-up" workout is.