u lack of speed big time, that will get u out of lane very quickly.

bowling is about impact, and the biggest factor is the speed. attempt the little skid hop and get more speed.
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When a house bowler misses the mark, misses the break point and strike, for many ppl its called a wallshot. When a pro does that its call adjustment

When a house bowler gets his finger stuck in the ball and fall on the lanes, for many ppl its called lame bowler. When a pro does that its called the Machuga flop! ha i like this one.

Overall you have good balance and form, but I agree with the two above.  To bowl 2 handed effectively at any level higher than league, you need to be able to get your ball speed up over 19mph.  If not you will be forced out of play on any sort of long pattern after the first few games because you will run out of lane to the left.
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Little known fact:  In Russian "Hope" and "Change" translate to "Tax" and "Spend"