No one's dissing the quality of the model, it's very well done. We just are recommending that you model in quads rather than tris, and work on your topology so everything flows. Having decent topology & modelling in quads is also handy if you ever decide to make a model and want to make a high definition model out of it, whether sculpting or hard surface modelling. Like I said though, the finished model ready for the game can have tris due to optimisation. You should be very proud of this model though, I've seen and done absolute crap looking models for first attempts. You definately got skills and I can't wait to see what you make next.