Thumbnail Feedback Please?

[summer wharf]

What changes would you make to make you want to click it?

[tulip wagon]

Try making the black circle white

[split thicket]

Not sure if there's any way to make the text a bit more "crisp" - I had to go out of my way to try and actually read it to know what it said - edges are too blurry somehow. Captures vibe pretty well, although the guy's brown eyes kind of seem unnatural/edited

[summer wharf]

the text has outer glow (kinda making it more blurry but shiny), i'll send a crisper one and try to make the guys eyes black