First Indoor Grow. Feedback Please!!

Greetings greenfingered guys and gals. This is my first indoor attempt. Got a bit of outdoor experience, but for privacy reasons I have had to move my garden inside. Luckily I have an unused shower recess under my house which should do nicely for my grow space. Bubble bucket made from an esky and a 150hps and some commercial hydro nutrients. I have a very limited budget....hence the no frills approach. The light was given to me and the rest was just lying around my house. All I had to buy was the air pump, lines, draining tap and air stones. Total so far $25. Will try to include some pics, but might need a few goes to get that part right. I welcome all feedback from the learned community that is Grasscity.
Peace.
Before topping.

After topping