Could you please provide screenshots for the thumbnails?
I also have a tip or two for you:
If you are using blender, I would highly recommend to get the PaintRig. This allows you too bend limbs to create better poses.
Use a HDRI. These are environments that you can use in your GFX to given even lighting and reflections. But, could cause your pc/laptop to crash if it is low-end or your scene has a lot of items.
Use a Lightroom. This could be your alternative to a HDRI. The best Lightroom for free - in my opinion - is the one by AlexanderGFX, it is also free.
Lastly, use cycles. This makes your scenes look more realistic with a better render quality, though it can still cause your pc/laptop to crash.
Hope you take these tips into mind, and good luck for the future.
You can actually use EDIT MODE, subdividing and then in wireframe mode, use B for box select, and select the sides or faces you want to move instead of that plugin.
MY OPINION
The GFX is quite basic, a simple import the character, move somebody parts without using subdivides to get better poses and render and some effects in some photo editor.
Here are some tips:
Firstly, use edit mode (TAB) and subdivide to get better poses as this can greatly make your GFX look better.
In post-editing, take time in the special effects and make it looks interesting and want to click on it or make people look at it.
I think the lighting, instead of a balanced on the whole body, make it shine more on the face or what you are trying to show.
When doing head renders, try showing the neck behind the border, but the top of the hair/ahts above it, so you will have to split the image. This will also improve the GFXs (for head shots and upper body)
FIRST OF ALL, This is obviously not 2 years of designing work, lets just put it there. Two, Lying about the time you have spent on work can get you into trouble, because people will ask “too” much from you.