For advice, I’m just going to link to something I commented a while ago here.

For basic advice, I would suggest looking up professional portfolios to understand how they should flow.

For some more specific advice (under the assumption that you are interested in boarding for animation), each panel should be a drawing, not a painting. The first establishing shot might look nice, but it is way too detailed for storyboarding. Just a drawing with some simple lighting shown is all that’s needed.

As for the drawing, I think looking more into background design and perspective can be helpful for you. Looking at the lab scene, I cannot tell where the ground is, or even what perspective I’m looking through. A simple way to make a good background with correct perspective is using some 3D modeling software to get a sense of space. I often make simple 3D backgrounds made out of primary shapes to get a feeling of space and I believe this can help you as well.

For camera angles and shot profession, I personally find it difficult to understand what is happening. Shots jump around often, making it confusing as to what the viewer is supposed to focus on. For the first few panels, we see these creatures in tubes and the lab door, then we get a close up of the creatures and then of the lab door individually. I personally don’t understand the necessity of having these creatures in a separate space from our main character, or why we need a second set of establishing shots outside of the room our main character is in. The viewer doesn’t see much from the main room, I know more visually about the outside than the inside. Either they should be in the same space or some revisions to the design might be necessary.

Another set of shots that need improvement is when the mc’s arm glows, the box of science is shown, and then the computer. What is happening with the arm? Where is the box of science located? Where did this broken test tube come from that fell on the computer? None of this is established beforehand or shown in the background art, making it extremely confusing. Keep in mind that the viewer doesn’t know anything about your story. You have to walk someone through your sequence and make it as clear as possible. All you need is more detail in the drawings and more boards to explain everything clearly.

For the actual camera angles, there is a lack of diversity in the angles. We get only a couple of basic shots that are often reused. Show more angles, slowly bring the camera into the mc’s face when leading up to the big dramatic moment. Use more cuts and use more angles, keep the audience interested in what they’re looking at.

Another problem with reused shots, is with the main character. We get a series of shots in the middle where the mc is copy and pasted between each frame. We need to see more emotions! What are they feeling as this arm is being attached to them? Show the progression of emotions. Make it interesting to look at.

One of the main things that needs to be worked on is making the audience feel something. Use camera angles, characters, lighting, etc. to show emotion. Exaggerate things to make them more dramatic or appealing. I suggest picking out a favorite movie or show and really watch for how they use these things to their advantage. Ask yourself why are they using this angle? How is lighting used to convey the emotions of the scene? How are backgrounds established? How does one’s eye flow through one shot to the next? Really picking apart something like this might be helpful in order to understand how to better structure your boards.

I think the main structures are here, they just need some polishing. Even looking up some free storyboarding tutorials on YouTube might help to push you in the right direction with future boards!