Dritz 618 Snag Nab-It Tool, 2-1/2-Inch 2 Pack

Not sure I'm seeing but if the issue is that they are looking/feeling a little loose/drooped to one side try tightening the stitches from the back (slip needle between the thread and fabric and gently pull and "loose" thread to the back of the work). Or try using a snag-nab-it to achieve the same result https://www.amazon.com/Dritz-Snag-Nab-Tool-2-Inch/dp/B01NCU2JKR

Agree with u/wren-st and u/RabbitSipsTea but add for beginner's benefit: here's a snag-nab-it which is a little tool made for just this type of difficulty https://www.amazon.com/Dritz-Snag-Nab-Tool-2-Inch/dp/B01NCU2JKR