Hi,
It looks like you have a number of problems going on here. I don't think it is related to temperature. Are you printing with ABS or PLA? Your temperatures are good for ABS, so I will assume you are using ABS. Here are my suggestions based on your pictures.
Sticking issue:
It looks like your Z=0 is too high off the bed. The first layer should squish down into the bed and stick to it really well. When my prints are done, I need to pop them off with a knife (though when I do ABS, cooling the bed is enough and when it cools I hear a pop as it releases).
Check your layer height and nozzle size. Your layer height should be 80% of your nozzle size for display prints, and 60% for prints which need to be strong (as in printer parts). If your nozzle is 0.5mm, your layer height should be a maximum of 0.4mm for show parts and 0.3mm for printer parts.
Check your Z steps per mm. Measure accurately where the Z axis is sitting, then drive up by 30mm. Did it actually go 30mm? Tune your Z_steps_per_mm if this is not the case, until it goes 30mm
You might want to put a "brim" on your parts, this will help lock your part down to the bed and prevent warping.
What surface are you printing on? I have had a nightmare getting ABS to stick to plain glass. My solution that works (and it seems everyone has their own solution that works for them) is ABS juice: take some Acetone, and mix in ABS Plastic (old parts that didnt work out) until they dissolve. Paint this on the glass and let it evaporate leaving a thin milky film on the glass.
Enable "Z Lift" in your slicing software, which will drive the Z up before doing any movements. This will help prevent knocking parts off during print (though in a well calibrated machine this should not be necessary. I don't use Z lift, however it got me printing at the beginning)
You may also want to check your belt tension and ensure they are tight.
