It looks alright. Does it have 650c wheels on it or are they 700c?

The first thing I noticed is that the seat clamp is swung around and the seat pushed forward for a TT/TRI position which is OK for TT/TRI but you MUST move the saddle back for road use. The clamp needs to be behind the post and push the saddle all the way back as a starting position. As is there will be a LOT of weight placed on her hands/shoulders while riding which will become excruciatingly uncomfortable. Pushing the saddle back as far as you can get it will minimize the weight on her hands/shoulders.

EDIT: Oh and the head tube is fine. I have many bikes with head tubes that short and nothing has ever broken or even looked like breaking.

Anthony