Not much to criticize here. A pleasant shot, lit well.

Get closer. Getting right up to the edge of the stream will still get you the "s" shape but the stream will seem more dynamic and impactful up close instead of everything being so far away. Also, time of day is important. Most of this is in shadow except for the small bit on the right that's properly exposed. Nature photographers pay very close attention to where the sun is to get the best lighting. Patience is a virtue. I've spend several trips to a spot and waited until it was just right, lighting wise. Frustrating, but worth it.

nice shot, but maybe crop it so there's not so much blurred in front of the turtle?

work on lighting. the color could be richer.

As isog sargent wrote, composition why it attracted to you? Probably those are the only red ones in the bush, well show thw other ones so we can see the diference of colors. The texture, well show us a couple flat ones to compare and see its uniqueness

As far as my eyes are concerned, the red thing is not in focus? imo, that would be the focus, since it is by color. You could try not to have something in front of it, also

Beautifully done. If you wanna make it even better, you could get rid of the stuff on the top left, and make the exposure (right bottom) more even :)

Too dark, would be better if it was a bit lighter

Nice picture, there was one saing, crop or cut it untill it bleeds, inless making minimalist or quantity. The outerlight is a nice thing to uselike in this case it separates the green from the blue, witch both together kinda of mixed.

A little out of focus and greater depth of field for the rest would improve this a lot.

Good. Maybe raise camera a tiny bit to frame the top of the flower with the hill?

I would try to capture your critters in either all shadow or all light since the dynamic range limitations of your camera means you either have to make an HDR shot out of this in post (so long as you shoot RAW), or you end up with the blown out highlights.

Good. Nicely composed. Too blown on top. Could have exposed a little darker and gotten better saturation point verall without losing shadiw detail. Lot's of exposure room in the darker areas.

Is hard to compose things in center, unless have paterns to make even, top view and architectural photography are perfectionist style with evens, patterns, and angles. If not it looks messy, and doesnt shine. Like a wedsing cake

Those are lense flares, they are good to use when you are trying something warm, summery, hot,. But the forrest is fresh and blueish color so it contradicts the scene

Too much obstruction in front of the subject, I'd say

The lenseflare is a good tool as is a exposure of nature and light, wich convined with the cabin makes a good summer spot

Use lenseflare and highlights to cherry top the main object. Also if the backlight is too harsh use flash to fill in, if the flash is too harsh, use a white card to bounce flash or a napkin to softbox the flash

Fun but no point.

If the flower is decaing, make a whole pucture of the feeling of decaing, if the picture is about colors, make a picture about vivid things, dont mix them as it feels forced or odd, or without a message

I agree with Pete Eteps that you have an eye for the motives and details, that have a potential for being an amazing shot, but I don't agree that it's the new camera that will take you to the next level. I would suggest to study some theory first, like composition rules. I promise you that if you would have planed your composition just a bit more, all of the shots above could have been even better! :) And don't underestimate your current camera. Even if it is not the best, it can deliver good pictures, we can see some examples above. Just get to know it, how to use it; maybe watch some tutorials on the model or even experiment with functions and settings from the manual. I wish you the best of luck, and do check out the composition rules, you'll see the difference in your own results soon ;)

The woods is beautifull, how could you show us the beauty of millions of branches in the same color? With texture, contrast, and little highlights in each one if posible, so we see a millions of the same thing, like the velbety of the forest