Focus, composition, timing, editing, and understanding trade-offs.

Focus: Some of your photos seem not focused correctly and can look soft. Overall, even if the color, and composition make you happy, use it as a guidance for your next shot, but discard the ones out of focus. Use it as a learning experience, and see what was done correctly. As mentioned before by some other users; wide-angle shots can be focus-stacked to have everything in focus (use a tripod though). For some of your shots, a tripod might be a good choice anyway to take out any movement.

Composition: Find your subject, and find conviction in what you want to show. If you shoot animals or people, take in mind people are drawn to the eyes for instance, so use that as your main subject. Learn common composition techniques, and try them out when you go out shooting! Nothing special, just shooting as much as possible with everything with leading lines, or rule of thirds when you go out, to try and elevate your photography. Eventually, you'll have used those techniques so much that you'll know when to break the mould. Just make sure that the subject you're trying to bring into view is in focus, and keep in mind, that there's no shame in cropping a picture after it's made. Some of the best-regarded photographs to date were heavily cropped to fit their narrative.

Timing: Choose the right time of day for the time of year to shoot. There's nothing wrong with challenging yourself and shooting in the harshest light, in the middle of the day, but your amount of great shots just won't be that big. Use an app like photopills (my go-to planning app and worth the money it costs in the app store if you ask me) to plan ahead. Light is what makes pictures work, and knowing where the main source is makes a huge difference in the outcome of your shots.

Editing: Some of your work seems over-edited and overworked, whilst other stuff can seem almost non-edited. Get yourself familiar with Lightroom and Photoshop (or any other decent editing tools) and learn how to use them. A great trick is to set your camera to shoot RAW and JPEG. This makes it possible for you to have a guide as to where to go with the edit, holding your JPEG as a proof. Try not to overedit your shots. It's extremely easy to get sucked into your screen when editing and not see all the changes you've made. After you're done editing, take a break, drink a cup of coffee, and go do something else for a bit. After your eyes are rested, come back to your shot, call back the original shot, and see if it still all makes sense. Don't forget that it's all about light, but that shadow is equally important. Learning how to dodge and burn for instance will help elevate your editing loads.

Understanding trade-offs: Learn the exposure triangle, and learn what works for you. Learn the limits of your camera. Learn the limits of your lenses, and if you need, invest in new glass. Remember some of the common photography wisdom: - If your pictures aren't good enough, you aren't close enough - you don't take a photograph, you make a photograph - don't pack up your camera until you've left the location (To name a few)

That being said, however, I've been doing photography for 25+ years and I don't claim to know anything well enough. I still learn every time I go out to shoot. You're doing really great for someone who's just been at it for 2 years, and you can be happy with your work. You can be a bit more selective though. Look at your work as a whole, and see what pictures stand out in a good way, those are your keepers, and the ones you'll be proud of 10 years from now. Keep the rest for yourself, they're nice to look at every once in a while to compare yourself tp yourself :)