What it takes to be a good webpage

So our group project focuses on Japanese elite burials across time, we'll try to look into the material culture, religious beliefs etc. I'm responsible for looking into the Japanese Kofun, not as a period of time but as a specific type of site. I did some googling and find one site that I like: link.

So here's my grading:

Category	4	3	2	1	Score
Reference/ Citation Styles	Full and accurate Harvard styled bibliographic references. Correct and full use of in-text citations	Overall clear citations with minor errors that need improvement	Few major errors and some missing content in the references or citations	Attempt to reference sources but citations are done inappropriately	3
Quality of Research	The sources are relevant and mainly academic; and researchers attempt for peer reviewed sources though it’s not required	The sources are overall relevant and academic, but some content are missing	The sources are slightly irrelevant to the topic but researchers show effort to apply them into their work	The researchers fail to make minimum reference and make use of it	3
Pictures in Content	The pictures are properly referenced and have descriptions. They are also relevant to the content	Small bits of the criteria of a 4 are missing	Majority of the criteria of a 4 is missing	The researchers attempt to include pictures but it is improperly done	4
Text	The text is descriptive, insightful, clear and is also accessible to large audience	The text is overall descriptive and insightful but there is a lack of clarity in it	The relevant content is missing and there is a lack of clarity in writing	The text is not accessible to larger audience, and the writing is unclear or redundant. There is also missing content	4
Grammar & Spelling		There is no errors in grammar or spelling that distract the reader from the content	There are some grammar or spelling errors that cause distractions for the reader	There are many grammar or spelling errors that cause distractions for the reader	3

Category	4	3	2	1	Score
Appearance			The website is clearly constructed and offers easy navigation for viewers	The website shows attempt to do the work but the construction is unclear or confusing	2
Flow and Coherency			The work flows together in a coherent manner, and there is consistency between writers	The writers attempt to flow but the output is disconnected	2

This site provides a good overview on Japanese Kofun, but I deducted 1 point each on "Reference/Citation Styles" and "Quality of Research" because the citation style is clearly not Harvard style which it not the writer's fault, but based on this rubric it cannot be a 4 on this section. The quality of research is good, although I think more sources should be used in this writing as the author only have 2 sources.