First off, congrats on creating the concept well fitted into the Star Trek universe~I do not watch Star Trek but I do know of the show and ambiance of the show aesthetics ~I definitely can see this pony being in the universe without feeling way out of place~There is just one element that is rather off for me and that I can give you a constructive critique on. From what I understand, design concepts usually have shadows or zero shadows at all. If shadows, While this is truly a concept type of work and shadowing can divert the eyes from the design work, the shadowing does not have to be overwhelming. For example, the way you have done the shadow work in your previous piece [ Heart Glasses ] and [ Princess of the Sun ] added the emotions because they are illustration artworks. However, the shadow skill you have done in those pieces can also be applied in a design concept.I am by no means an expert on this art element but shadowing on the body is not the same as the hair. The shadowing on the body is very, VERY light and could have been more in a darker color choice. If there is shiny on the hair, there should be shiny on the body. Likewise, on the hair, there should have been shadows but I assumed the color choice was very, very close to the base color. I had to look at the artwork in magnified to actually notice the shadow. The highlight is composed quite well and I do like the two variations of light intensity. The placement of the shadow work is pretty good though and you do have the eye and mindfulness of where the light source is. Don't be afraid to step out of the color scheme a bit for the shadowing, especially if you are using a layered effect like "darken" or "multiply". Contrast colors of the warm theme like the cool colors for a shadow can create interesting results. The most popular shadow coloring though is blue.Overall, the composition of this concept design really good. You've drawn the pony well proportion and the focus points is pretty spread out that it helps the viewer see the pony as a whole. I love how you have done the model composition being 3/4 view for the back side and added 4 detailed design concept~ I also love the cleverness of where the details are placed like the yellow detail on the bridge of the nose mimics the star design. The front points of the hooves is a smart design as well. The color scheme and placement is really, really well done that I can see the love and care being put into the 3D model.