That definitely does not look like 2500 grafts and it looks like the grafts are very large. You can almost count them yourself on the pictures. You may need to have this corrected by a qualified hair restoration doctor. If you are in southern California there are multiple great doctors to choose from including the ones that have responded to your question. I would recommend visiting one of us.
Number of grafts
it doesn't look like 2500 grafts and the grafts look very large. Your hair line design looks poor. You need to contact your doctor and express your concerns. This is why choosing a doctor with experience and track record is important.
Grafts loo large, not 2500
These are NOT 2500 grafts, and no way is the packing anywhere near 45 per sq.cm.
Speak to your doctor as this is clearly not the density/ count they seem to have promised. Also, make sure to have a second opinion from a qualified hair transplant surgeon, to see if the spaced between can be filled, at least along the hairline.
It does not look like 2500 grafts. You can count it yourself with a good photo.
It does not look like 2500 grafts. You can count it yourself with a good photo. You need to follow up with your doctor or seek another doctor for a second advice.
Hair Transplantation Should Be Done By Experts
See your doctor and ask those questions. Hair transplantation is a very rewarding procedure if it is done properly. Artistry, design, caring for the patient and grafts all factor into the ultimate results you will achieve. Avoiding practices/facilities that promote a machine or dabble in hair restoration as just one of many procedures is important. Most homework about hair restoration should be done before the procedure not after. These points are general and not specific to your case. Please review my link on avoiding a bad hair transplant. Unfortunately, I still do far too many repairs of bad hair transplants.
Current Standards in FUE
That indeed looks like subpar work. You can measure it for yourself but the density looks about 10 per square cm. The grafts look like minigrafts instead of micrografts that are not commonly used in the last decade, which may cause a doll-like appereance especially if the angles were not created right. At this point you have to hope that they grow in an acceptable fashion and that your donor area was preserved for future sessions. After getting the result in about a year, you should do your homework and search for a skilled surgeon to proceed with.
Photographs can be very deceptive and yours only shows the from of your head. However it certainly doesn't look like a density of 45 per square cm. If there wasn't significant grafting in areas not shown by the photograph then it is also unlikely you had 2500 grafts.
You might want to seek the advice of a lawyer.
If the doctor is a member of the ISHRS - International Society of Hair Restoration Surgery - then you might also want to seek advice from this Association.
It is difficult to predict what your appearance will be like once the transplanted hairs have grown but if you aren't happy then I'm sure a reputable hair transplant surgeon will be able to improve things. Of course, more experienced surgeons tend to be more expensive!