They don't look too bad? Maybe. The first is soft and light. It covers the arms delicately, which is excellent, but it is designed to be worn with a camisole, which comes included. There goes the temperature! The second is fun and easy to wear. It covers the upper arms without making it obvious that there is extra weight there, but look where it is elasticated! Funnily enough, women tend to carry their weight around the hips (whether you are carrying extra kilos or not) so why would you emphasis that part of you?
When buying a summer top with sleeves it is important to note where the sleeve ends. Often they will end mid upper arm which is wonderful for letting the flab flap free as you more your arm in normal use. Very tasteful!
I think it is back to the search for me. There must be something out there so I had better keep looking. When is it winter again?