They look like classic bend bars so usually the bottoms are about level with the ground, in which case you'd need to rotate the levers back quite a bit.
If it's the 105 mech with the long arm, you need quite a bit of tension in the cable to get it to shift.
The rear is short I think, for an 11/28 cassette. They both seem to have quite fine tolerances which for a novice at more than one gear bikes is a challenge!
I meant the front mech. If it's got an arm on it like this one, then you'll need quite alot of tension in the cable to get it to shift well. It's not just a case of pulling the cable finger tight, you'll probably need to add some turns on the barrel adjuster on the downtube.
They look like classic bend bars so usually the bottoms are about level with the ground, in which case you'd need to rotate the levers back quite a bit.
If it's the 105 mech with the long arm, you need quite a bit of tension in the cable to get it to shift.