Handphone holder

1st type This is my first attempt in making my first prototype. While making it, i found out that it doesnt work, so i had to redo it again.
2nd type sketch This is my second sketch for my prototype. Went to research more and change the model completely.
2nd type Attempted my second prototype. It worked well initally until the phone was placed there for 3 minutes plus. I found out my center of gravity was quite far from my pivot point, henceforth the handholder collapsed.
3rd type sketch 3rd type front 3rd type side

this is my 3rd prototype. I changed the angle to more upright so that the holder is closer to pivot point (aka, the base). And its way more stable.